self-assurance
Word family
- self-assuredadjectiveC2
- self-assuredlyadverbC2
- assurancenounB2
- assuredadjectiveB2
- assuredlyadverbC1
Synonym discussion
Sense: noun/1
Self-assurance and self-confidence are close in meaning, but self-assurance carries a nuance of calm, steady composure — suggesting inner certainty rather than outward assertiveness. Confidence is the broadest term, used for both self-belief and trust in external things ('confidence in the project'). Poise emphasises physical and emotional grace under pressure, while aplomb is the most formal, describing skillful, unflappable handling of difficult situations. A manager might address a room with confidence, handle criticism with self-assurance, greet guests with poise, and resolve a sudden crisis with aplomb.
Etymology
Formed from the prefix 'self-' (referring to oneself) and 'assurance' (from Old French 'asseurance', meaning promise, certainty, or confidence). The compound 'self-assurance' entered English in the early 17th century, carrying the combined sense of certainty or confidence in one's own abilities or judgments.