
Daunting
Experience Based
Used when something seems scary because it's new or unknown.

Visiting a foreign country alone can be daunting.
Emotion Trigger
Can imply that the challenge could make someone feel unsure or hesitant.

Taking the lead on the project is a daunting responsibility.
Subjective Feeling
What's daunting to one person might not be to another; it's subjective.

For some, public speaking is a daunting idea.
Compare with
ArduousChallengeDiscourageFormidableFrightenHazardousHerculeanIntimidateOverwhelm
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