could not care less
Meaning
To not care at all; to be completely indifferent about something.
Origin
Recorded in the mid-20th century; it uses a logical scale of “caring,” meaning your level of concern is already at the minimum, so you cannot care any less.
Notes
Strong indifference, often blunt or dismissive; can sound rude. Common in casual speech to show something matters zero. Use carefully in polite/professional contexts.
Examples
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He could not care less about what people think of his haircut.
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I could not care less if they cancel the meeting; I have plenty to do.
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She could not care less about winning as long as everyone has fun.
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They could not care less that the restaurant got a bad review online.
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Honestly, I could not care less whether he likes me or not.
Grammar & Usage Notes
Fixed form: “could not care less” (often contracted: couldn’t). Typically followed by “about + noun/gerund” or used alone. Don’t use “could care less” if aiming for strict logical meaning.
Synonyms
- not care at all
- not give a damn
- couldn't give a toss
- couldn't care less
- be indifferent
- not be bothered
Antonyms
- care a lot
- give a damn
- be concerned
- be invested