1. (

• antic ,
• fantastic ,
• fantastical ,
• grotesque

) ludicrously odd; "Hamlet's assumed antic disposition"; "fantastic Halloween costumes"; "a grotesque reflection in the mirror" ;

2. (

• fantastic ,
• grand ,
• howling ,
• marvelous ,
• marvellous ,
• rattling ,
• terrific ,
• tremendous ,
• wonderful ,
• wondrous

) 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" ;

3. (

• fantastic ,
• wild

) fanciful and unrealistic; foolish; "a fantastic idea of his own importance" ;

4. (

• fantastic ,
• fantastical

) existing in fancy only; "fantastic figures with bulbous heads the circumference of a bushel"- Nathaniel Hawthorne ;

5. (

• fantastic

) extravagantly fanciful in design, construction, appearance; "Gaudi's fantastic architecture" ;