The meaning of FANTASTIC is based on fantasy : not real. How to use fantastic in a sentence. Synonym Discussion of Fantastic.

FANTASTIC definition: 1. extremely good: 2. strange and imaginary, or not reasonable: 3. very unusual, strange, or…. Learn more.

While all three words mean "conceived, made, or carried out without adherence to truth or reality," fantastic may connote extravagance in conception or ingenuity of decorative invention.

FANTASTIC meaning: 1. extremely good: 2. strange and imaginary, or not reasonable: 3. very unusual, strange, or…. Learn more.

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FANTASTIC definition: extraordinarily good; excellent. See examples of fantastic used in a sentence.

Definition of fantastic adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

These adjectives apply to what is very strange or strikingly unusual. Fantastic describes what seems to have slight relation to the real world because of its strangeness or extravagance: fantastic imaginary …

Fantastic suggests a wild lack of restraint, a fancifulness so extreme as to lose touch with reality: a fantastic scheme for a series of space cities. In informal use, fantastic often means simply …

Feb 3, 2026 · Adjective fantastic (comparative more fantastic, superlative most fantastic) Wonderful; marvelous; excellent; extraordinarily good or great (used especially as an intensifier).