|Origin:||fantasie, from Latin phantasia, from Greek, 'appearance, imagination'|
1 [uncountable and countable]
an exciting and unusual experience or situation you imagine happening to you, but which will probably never happen:
I used to have fantasies about living in Paris with an artist.
Young children sometimes can't distinguish between fantasy and reality.
He lived in a fantasy world of his own, even as a small boy.
2 [singular, uncountable]
an idea or belief that is based only on imagination, not on real facts:
Memories can sometimes be pure fantasy, rather than actual recollections.
a story, film etc that is based on imagination and not facts:
a surrealist fantasy set in a South American village