GRE TOEFL IELTS brilliant Definition Exceptionally clever, talented, or bright in appearance. Example "The diamond sparkled with brilliant light." Sign in to save GRE Quiz → TOEFL Quiz → IELTS Quiz → ← brilliance brilliantly → Study tips featuring "brilliant" Audit Your Own Writing to Find Gaps Write GRE Words Into Your Own Sentences TOEFL Academic Vocabulary: Study by Topic Related words GRE swill GRE taper GRE testy GRE abacus SAT abase GRE abash GRE abate GRE abbreviate GRE abbreviation SAT abdicate SAT abdomen GRE abduct