异想天开

異想天開
yìxiǎngtiānkāi
(idiom) to imagine the wildest thing; to indulge in fantasy

CEDICT

Entry Composition

1 异 yì
  1. different
  2. other
  3. hetero-
  4. unusual
  5. strange
  6. surprising
  7. to distinguish
  8. to separate
  9. to discriminate
2 想 xiǎng
  1. to think (about)
  2. to think of; to devise
  3. to think (that); to believe (that)
  4. to desire; to want (to)
  5. to miss (feel wistful about the absence of)
3 天 tiān
  1. day
  2. sky
  3. heaven
4 开 kāi
  1. to open (transitive or intransitive)
  2. (of ships, vehicles, troops etc) to start
  3. to turn on; to put in operation; to operate; to run
  4. to boil
  5. to write out (a prescription, check, invoice etc)
  6. (directional complement) away; off
  7. carat (gold)
  8. abbr. for Kelvin, 开尔文 Kāiěrwén
  9. abbr. for 开本 kāiběn, book format