SINCE 1828

An Encyclopædia Britannica Company

sure of oneself

idiom

Definition of sure of oneself

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.

Word by Word Definitions

sure play

: safe from danger or harm
: firmly established : steadfast
: reliable, trustworthy

: surely

See the full definition of sure

oneself play

: a person's self : one's own self
: one's normal, healthy, or sane condition or self

See the full definition of oneself

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