fantastic - adjective

• ludicrously odd
• extraordinarily good or great ; used especially as intensifiers
• fanciful and unrealistic; foolish
• existing in fancy only
• extravagantly fanciful in design, construction, appearance

fantastic - thesaurus

antic   fantastical   grand   grotesque   howling   marvellous   marvelous   rattling   terrific   tremendous   wild   wonderful   wondrous