I. adjective
1.
Synonyms: dreamy 1, astral, daydreaming, daydreamy, otherworldly, unworldly
Related Word: abstracted, introspective, musing; impractical
Idioms: out of this world, up in the clouds
2.
Synonyms: idealistic , idealist, utopian
Related Word: exalted, grandiose, lofty, noble, pretentious
Antonyms: pragmatic, pragmatical
3.
Synonyms: ambitious 2, grandiose, lofty, pretentious, utopian
Related Word: radical
II. noun
Synonyms: dreamer , castle-builder, idealist, ideologue, utopian
Antonyms: pragmatist