sure of oneself
idiom
1
: confident in one's abilities
He was never very sure of himself as a comedian.
2
somewhat disapproving
: overly confident or arrogant
They seem awfully sure of themselves.
Examples of sure of oneself in a Sentence
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To be too sure of oneself, to never doubt one’s own reasoning or feelings, is a flaw that her foolish characters brandish, much to our delight.
—
Alexandra Schwartz, New Yorker, 16 Dec. 2025
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Alexandra Schwartz, New Yorker, 16 Dec. 2025
Cite this Entry
“Sure of oneself.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sure%20of%20oneself. Accessed 12 Jan. 2026.
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