Meanings
- Used other than figuratively or idiomatically: see sure.
- sarcasticusuallyUsed to emphasise an apology, acknowledgement, etc.
— Huh, sorry I'm sure.
1 more example
— Hey, you're standing too close to me.
- datedidiomaticUsed as an interjection to indicate denial or contradiction in response to an assertion or accusation.
— Uh!...I'm sure!...
1 more example
— You're just using that as an excuse to ditch class and go surfing.
Cite this entry
I'm sure. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/I'm%20sure
“I'm sure.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/I'm%20sure. Accessed November 4, 2026.
WatkinsX Dictionary, s.v. “I'm sure,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/I'm%20sure.
Source: I'm sure on Wiktionary, CC BY-SA 4.0.