your guess is as good as mine
Meaning
I don’t know any more than you do; your guess is no worse than mine because we have the same lack of information.
Origin
Built on the comparative pattern “as good as,” meaning “equally good.” It’s used ironically: since neither person knows, any guess is equally (un)reliable.
Notes
Casual and often mildly wry. It implies you lack information and can’t give a better answer. Can sound dismissive if overused or in serious contexts.
Examples
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When will the package arrive? Your guess is as good as mine—tracking hasn’t updated in days.
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Why did he quit so suddenly? Honestly, your guess is as good as mine.
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If you’re asking me how this bug slipped through testing, your guess is as good as mine.
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Is the meeting still happening after the schedule change? Your guess is as good as mine.
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Where did she learn to play like that? Your guess is as good as mine.
Grammar & Usage Notes
Fixed comparative pattern: “X is as good as Y.” Most common set form is “Your guess is as good as mine,” though pronouns can vary (his/her/their). Uses singular “guess … is.”
Synonyms
- i have no idea
- beats me
- who knows
- don’t ask me
- i’m not sure
Antonyms
- i know for sure
- i can tell you exactly
- i have the answer