Harmful
adjective
Causation or likely to cause damage or harm.
Smoking is harmful to your health.
Often appears as...
- harmful effects
- harmful substances
adjective
Having a negative impact on the environment or ecosystem.
The harmful chemicals leaked into the river, killing the fish.
Often appears as...
- harmful pesticides
- harmful pollution
Usage tips
Disapproving
Ecological
adjective
Injurious or risky to the mental health or well-being.
Bullying can have harmful effects on a person's mental health.
Often appears as...
- harmful behavior
- harmful relationships
Usage tips
Psychological
adjective
Causation or likely to cause damage or harm.
Smoking is harmful to your health.
Often appears as...
- harmful effects
- harmful substances
adjective
Having a negative impact on the environment or ecosystem.
The harmful chemicals leaked into the river, killing the fish.
Often appears as...
- harmful pesticides
- harmful pollution
Usage tips
Disapproving
Ecological
adjective
Injurious or risky to the mental health or well-being.
Bullying can have harmful effects on a person's mental health.
Often appears as...
- harmful behavior
- harmful relationships
Usage tips
Psychological
Definition 1 of 3
Pro Tip 1/2Personal Impact
Used to show direct negative effects on a person’s body or health.
Eating too much sugar is harmful to your teeth.
Pro Tip 2/2Avoid Generalizing
Be specific about what is harmful and to whom or what, to avoid confusion.
Not all insects are harmful to plants; some are beneficial.
Pro Tip 1/2Personal Impact
Used to show direct negative effects on a person’s body or health.
Eating too much sugar is harmful to your teeth.
Pro Tip 2/2Avoid Generalizing
Be specific about what is harmful and to whom or what, to avoid confusion.
Not all insects are harmful to plants; some are beneficial.
Pro Tip 1/2Personal Impact
Used to show direct negative effects on a person’s body or health.
Eating too much sugar is harmful to your teeth.
Pro Tip 2/2Avoid Generalizing
Be specific about what is harmful and to whom or what, to avoid confusion.
Not all insects are harmful to plants; some are beneficial.
Compare with
damagedangerousdestructivedetrimentalhazardousinjuriouslethalnoxiousperiloustoxic
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Video examples
The ethical dilemma of...
decreased harmful emissions, and minimized unproductive and stressful driving time. But accidents can and will still happen, and when they do, their outcomes may be determined months or years in advance by programmers or policy makers. And they'll have some difficult decisions to make.
Video examples
The life cycle of a...
Other harmful compounds and chemicals can cause widespread contamination when released as toxic waste water in rivers and oceans. Technologies are now so advanced in some countries that the entire process of growing and producing fabric barely touches a human hand.
Video examples
Why do we itch? - Emma...
The leading theory is that our skin has evolved to be acutely aware of touch so that we're equipped to deal with risks from the outside world. Think about it. Our automatic scratching response would dislodge anything harmful that's potentially lurking on our skin,
Video examples
How to disrupt...
the first disruption is the disruption of dominant powerful narratives what are narratives they're the stories that we tell about others in ourselves and about how the world works sometimes they can be harmful stereotypes like all black
Video examples
Sun 101 PIPE National...
Called the heliosphere this force field protects the planets from harmful cosmic radiation It's caused by the sun's plasma pushing electrically charged particles toward the Stars poles This process turns the Sun into a giant magnet
Video examples
Pamela Ronald: The case...
sometimes twice a day, when pest pressure is high. But we know that some insecticides are very harmful to human health, especially when farmers and their families cannot afford proper protection, like these children.
Video examples
Gentle Giants Struck by...
carefully managed and regulated to prevent any harmful impact on the manatees or their environment balancing our needs with those of the wildlife we share our planet with isn't always easy but the recovery of the
Video examples
How the food you eat...
The bacteria in our guts can break down food the body can't digest, produce important nutrients, regulate the immune system, and protect against harmful germs. We don't yet have the blueprint
Video examples
Why do our bodies age? -...
Even if we could avoid all these harmful genetic alterations, not even our own cells could save us. The fact remains that cellular regeneration, the very stuff of life, declines as we age.
Video examples
What really happens to...
and some of those are highly toxic. Together, they create a harmful stew called leachate, which can move into groundwater, soil and streams, poisoning ecosystems and harming wildlife.
Video examples
The ethical dilemma of...
decreased harmful emissions, and minimized unproductive and stressful driving time. But accidents can and will still happen, and when they do, their outcomes may be determined months or years in advance by programmers or policy makers. And they'll have some difficult decisions to make.
Video examples
The life cycle of a...
Other harmful compounds and chemicals can cause widespread contamination when released as toxic waste water in rivers and oceans. Technologies are now so advanced in some countries that the entire process of growing and producing fabric barely touches a human hand.
Video examples
Why do we itch? - Emma...
The leading theory is that our skin has evolved to be acutely aware of touch so that we're equipped to deal with risks from the outside world. Think about it. Our automatic scratching response would dislodge anything harmful that's potentially lurking on our skin,
Video examples
How to disrupt...
the first disruption is the disruption of dominant powerful narratives what are narratives they're the stories that we tell about others in ourselves and about how the world works sometimes they can be harmful stereotypes like all black
Video examples
Sun 101 PIPE National...
Called the heliosphere this force field protects the planets from harmful cosmic radiation It's caused by the sun's plasma pushing electrically charged particles toward the Stars poles This process turns the Sun into a giant magnet
Video examples
Pamela Ronald: The case...
sometimes twice a day, when pest pressure is high. But we know that some insecticides are very harmful to human health, especially when farmers and their families cannot afford proper protection, like these children.
Video examples
Gentle Giants Struck by...
carefully managed and regulated to prevent any harmful impact on the manatees or their environment balancing our needs with those of the wildlife we share our planet with isn't always easy but the recovery of the
Video examples
How the food you eat...
The bacteria in our guts can break down food the body can't digest, produce important nutrients, regulate the immune system, and protect against harmful germs. We don't yet have the blueprint
Video examples
Why do our bodies age? -...
Even if we could avoid all these harmful genetic alterations, not even our own cells could save us. The fact remains that cellular regeneration, the very stuff of life, declines as we age.
Video examples
What really happens to...
and some of those are highly toxic. Together, they create a harmful stew called leachate, which can move into groundwater, soil and streams, poisoning ecosystems and harming wildlife.
Example 1 of 10
Quote examples
Jewell Parker Rhodes
American Novelist
Prejudice is sinful. All blood flows red. And the most harmful and foolish kind of prejudice is prejudice against yourself. Every woman is your sister, and every woman needs her sisters. So try to give other women the courtesy of your compassion, respect, and forgiveness. Love yourself despite - and because of - your flaws.
Quote examples
Freeman Dyson
American Physicist
We have no reason to think that climate change is harmful if you look at the world as a whole. Most places, in fact, are better off being warmer than being colder. And historically, the really bad times for the environment and for people have been the cold periods rather than the warm periods.
Quote examples
Kamala Harris
American Vice President
We don't want to promote any system that treats the fact that an individual is LGBT as a personality disorder. And anything that perpetuates that perception is harmful - not only to that member of the community but the entire community.
Quote examples
Floyd Abrams
American Lawyer
The government would be able to go to court with respect to newspaper articles, broadcast pieces and the like that they thought were bad or harmful or even against the government and try to block them.
Quote examples
Yoshihide Suga
Japanese Politician
My job, as I've said, is to break down sectionalism, vested interests and a fixed mindset of merely following precedents, so that I'm not subjected to the harmful effects of factions.
Quote examples
P. J. O'Rourke
American Comedian
Every vote should carry a serial number, so that responsibility for harmful or careless use of the vote can be traced. Concealed voting should be outlawed.
Quote examples
Bill Gates
American Businessman
The belief that the world is getting worse, that we can't solve extreme poverty and disease, isn't just mistaken. It is harmful.
Quote examples
Jamie Chung
American Actress
It's so important to protect your eyes from harmful UV rays - you use SPF every morning, but you need to protect your eyes, too.
Quote examples
Thomas Huxley
English Scientist
Irrationally held truths may be more harmful than reasoned errors.
Quote examples
Thomas Mann
German Writer
A harmful truth is better than a useful lie.
Quote examples
Jewell Parker Rhodes
American Novelist
Prejudice is sinful. All blood flows red. And the most harmful and foolish kind of prejudice is prejudice against yourself. Every woman is your sister, and every woman needs her sisters. So try to give other women the courtesy of your compassion, respect, and forgiveness. Love yourself despite - and because of - your flaws.
Quote examples
Freeman Dyson
American Physicist
We have no reason to think that climate change is harmful if you look at the world as a whole. Most places, in fact, are better off being warmer than being colder. And historically, the really bad times for the environment and for people have been the cold periods rather than the warm periods.
Quote examples
Kamala Harris
American Vice President
We don't want to promote any system that treats the fact that an individual is LGBT as a personality disorder. And anything that perpetuates that perception is harmful - not only to that member of the community but the entire community.
Quote examples
Floyd Abrams
American Lawyer
The government would be able to go to court with respect to newspaper articles, broadcast pieces and the like that they thought were bad or harmful or even against the government and try to block them.
Quote examples
Yoshihide Suga
Japanese Politician
My job, as I've said, is to break down sectionalism, vested interests and a fixed mindset of merely following precedents, so that I'm not subjected to the harmful effects of factions.
Quote examples
P. J. O'Rourke
American Comedian
Every vote should carry a serial number, so that responsibility for harmful or careless use of the vote can be traced. Concealed voting should be outlawed.
Quote examples
Bill Gates
American Businessman
The belief that the world is getting worse, that we can't solve extreme poverty and disease, isn't just mistaken. It is harmful.
Quote examples
Jamie Chung
American Actress
It's so important to protect your eyes from harmful UV rays - you use SPF every morning, but you need to protect your eyes, too.
Quote examples
Thomas Huxley
English Scientist
Irrationally held truths may be more harmful than reasoned errors.
Quote examples
Thomas Mann
German Writer
A harmful truth is better than a useful lie.
Example 1 of 10
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