1. (adj) antic, fantastic, fantastical, grotesque
ludicrously odd
Synonyms: wondrous, grotesque, tremendous, terrific, antic, howling(a), wonderful, marvellous, fantastic, wild, monstrous, marvelous, fantastical, rattling(a), grand
Antonyms: existent, realistic, ordinary, familiar, plain, real
2. (adj) fantastic, grand, howling(a), marvelous, marvellous, rattling(a), terrific, tremendous, wonderful, wondrous
extraordinarily good or great ; used especially as intensifiers
Antonyms: real, plain, existent, realistic, familiar, ordinary
3. (adj) fantastic, wild
fanciful and unrealistic; foolish
Synonyms: raging, marvelous, gaga, rattling(a), violent, untamed, unfounded, wondrous, wonderful, grand, marvellous, tremendous, godforsaken, dotty, hazardous, uncivilised, uncivilized, waste, baseless, risky, angry, fantastical, idle, wild, groundless, grotesque, savage, fantastic, antic, terrific, crazy, raving mad, howling(a), barbarian, barbaric, furious, unwarranted, tempestuous
Antonyms: real, plain, realistic, ordinary, familiar, existent
4. (adj) fantastic, fantastical
existing in fancy only
Synonyms: wondrous, grotesque, tremendous, terrific, antic, howling(a), wonderful, marvellous, fantastic, wild, marvelous, fantastical, rattling(a), grand
Antonyms: familiar, existent, plain, ordinary, realistic, real
5. (adj) fantastic
extravagantly fanciful in design, construction, appearance
Synonyms: wondrous, grotesque, tremendous, terrific, antic, howling(a), wonderful, marvellous, wild, marvelous, fantastical, rattling(a), grand
Antonyms: plain, ordinary, familiar, realistic, real, existent
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Synonyms and Antonyms of fantastic 
