from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Quaint or strange in form, conception, or appearance.
- adj. Unrestrainedly fanciful; extravagant: fantastic hopes.
- adj. Bizarre, as in form or appearance; strange: fantastic attire; fantastic behavior.
- adj. Based on or existing only in fantasy; unreal: fantastic ideas about her own superiority.
- adj. Wonderful or superb; remarkable: a fantastic trip to Europe.
- n. An eccentric person.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Existing in or constructed from fantasy; of or relating to fantasy; fanciful.
- adj. Not believable; implausible; seemingly only possible in fantasy.
- adj. Wonderful; marvelous; excellent; extraordinarily good or great (used especially as an intensifier).
from the GNU version of the Collaborative International Dictionary of English
- adj. Existing only in imagination; fanciful; imaginary; not real; chimerical.
- adj. Having the nature of a phantom; unreal.
- adj. Indulging the vagaries of imagination; whimsical; full of absurd fancies; capricious
- adj. Resembling fantasies in irregularity, caprice, or eccentricity; irregular; oddly shaped; grotesque.
- n. A person given to fantastic dress, manners, etc.; an eccentric person; a fop.
from The Century Dictionary and Cyclopedia
- Of the nature of a phantom or fantasy; produced or existing only in imagination; imaginary; not real.
- Due to fantasy or whim; arising from or caused by caprice; groundless; illusive.
- Morbidly or grotesquely fanciful; manifesting a disordered imagination; chimerical.
- Suggestive of fantasies through oddness of figure, action, or appearance, or through an air of unreality; whimsically formed or shaped; grotesque.
- Controlled by fantasy; indulging the vagaries of imagination; capricious: as, fantastic minds; a fantastic mistress.
- Synonyms Grotesque, etc. (see fanciful); odd, qneer, strange, freakish, quaint.
- n. One who acts fantastically or ridiculously; a grotesque. Sometimes used in the plural of a company of persons grotesquely dressed, and acting or parading in a ludicrous way, for amusement.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. existing in fancy only
- adj. ludicrously odd
- adj. fanciful and unrealistic; foolish
- adj. extraordinarily good or great ; used especially as intensifiers
- adj. extravagantly fanciful in design, construction, appearance
Middle English fantastik, imagined, from Old French fantastique, from Late Latin phantasticus, imaginary, from Greek phantastikos, able to create mental images, from phantazesthai, to appear; see fantasy.(American Heritage® Dictionary of the English Language, Fourth Edition)
fantasy + -ic (Wiktionary)