Meaning : Ludicrously odd.
Example :
Hamlet's assumed antic disposition.
Fantastic Halloween costumes.
A grotesque reflection in the mirror.
Synonyms : antic, fantastical, grotesque
Meaning : Extraordinarily good or great. Used especially as intensifiers.
Example :
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
Meaning : Fanciful and unrealistic. Foolish.
Example :
A fantastic idea of his own importance.
Synonyms : wild
Meaning : Existing in fancy only.
Example :
Fantastic figures with bulbous heads the circumference of a bushel.
Synonyms : fantastical
Meaning : Extravagantly fanciful in design, construction, appearance.
Example :
Gaudi's fantastic architecture.