Added 9 October 2026 self-confidence noun Categories: Mind & IdeasObscure Words noun ! Definition from WordNet 3.1, Princeton University. More about self-confidence at Wordnik → Where our words come from → Freedom from doubt; belief in yourself and your abilities. his assurance in his superiority did not make him popular Related Words: confidenceself-assurancesurenessassuranceauthorityassertivenessself-respectself-esteemself-worthprideselfself-reliance Back to today's word