He started to lose his wits during the long, difficult exam.
lose one's wits
idiomTo become irrational; lose one's mind or sense of reason.
When the computer system crashed for the third time, the manager began to lose his wits.
Faced with the relentless pressure of the deadline, the exhausted architect felt as though he might lose his wits entirely.
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abound in one's own sense
To follow one’s own inclinations and opinions.
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ace up one's sleeve
A surprise advantage of which others are not aware.
- 03
act one's age
To behave in a manner appropriate to one's age.
- 04
act one's age, not one's shoe size
Synonym of act one's age (“to behave in a mature manner; to avoid being childish”).
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afraid of one's own shadow
Exceptionally timid.
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air one's dirty laundry in public
To reveal one's sordid secrets to the public.
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air one's dirty linen in public
Synonym of air one's dirty laundry in public.
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albatross around one's neck
A characteristic, possession, associate, or previous deed that hinders one's ability to succeed.
Last updated July 12, 2026