Home › Words › B › brilliantnessbrilliantnessbrilliantness means the state or quality of being brilliant.EtymologyFrom brilliant + -ness.nounThe state or quality of being brilliant.Definitions & examples from Wiktionary (CC BY-SA 3.0).Words closest in meaningBy meaning, not spelling — each word's AI semantic fingerprint, nearest first.brilliancy 87% match — A shining quality; brilliance. vs brilliantness →brilliance 85% match — The quality of being exceptionally effulgent (giving off light). vs brilliantness →brillance 76% match — brilliancy vs brilliantness →brightness 71% match — The quality of being bright. vs brilliantness →splendidness 71% match — the state or the quality of being splendid. vs brilliantness →brilliantly 70% match — In a brilliant manner; with brilliance. vs brilliantness →dazzlingness 69% match — The state or quality of being dazzling. vs brilliantness →overbrilliance 69% match — Excessive brilliance. vs brilliantness →