GRE TOEFL IELTS fantastic Definition Extraordinarily good; also, wildly imaginative or unreal. Example "They had a fantastic vacation in the Maldives." Sign in to save GRE Quiz → TOEFL Quiz → IELTS Quiz → ← fang fantasy → Study tips featuring "fantastic" 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