Atonic
/eɪˈtɑːnɪk/adjective
Lacking energy or strength.
After the marathon, he was so atonic that he could barely stand.
Usage tips
Formal
Definition 1 of 3
Pro Tip 1/3Physical Weakness
Use 'atonic' to describe extreme tiredness, much more than just being sleepy or lazy.
He felt atonic after working three shifts back-to-back.
Pro Tip 2/3Emotional Nuance
'Atonic' can imply a sense of helplessness or inability to act due to lack of energy.
The news left her feeling suddenly atonic.
Pro Tip 3/3Not Commonly Used
'Atonic' is not a word you'll hear often; it's more specific and less common than 'tired'.
I only use 'atonic' for dramatic effect, like after running a marathon.
Compare with
debilitatefeebleflaccidfloppyinertlimpslackweak
Never forget "Atonic"
Humans forget easily. That's why you should download WordUp: Smart reminders, word games, AI practice, and much more!
WordUp Chrome Extension
As you browse the web instantly look up words you don’t know.
Get Chrome Extension