fantastic meaning and definition

FANTASTIC adjective

Definition of fantastic (adjective)

1. ludicrously odd
   • "Hamlet's assumed antic disposition"; "fantastic Halloween costumes"; "a grotesque reflection in the mirror"
   • synonyms: antic, fantastical, grotesque
2. extraordinarily good or great ; used especially as intensifiers
   • "a fantastic trip to the Orient"; "the film was fantastic!"; "a howling success"; "a marvelous collection of rare books"; "had a rattling conversation about politics"; "a tremendous achievement"
   • synonyms: grand, howling, marvellous, marvelous, rattling, terrific, tremendous, wonderful, wondrous
3. fanciful and unrealistic; foolish
   • "a fantastic idea of his own importance"
   • synonyms: wild
4. existing in fancy only
   • "fantastic figures with bulbous heads the circumference of a bushel"- Nathaniel Hawthorne
   • synonyms: fantastical
5. extravagantly fanciful in design, construction, appearance
   • "Gaudi's fantastic architecture"