痴心妄想

chīxīnwàngxiǎng
  1. to be carried away by one's wishful thinking (idiom)
  2. to labor under a delusion
  3. wishful thinking

CEDICT

to obsessively fantasize about something that cannot come true

Wiktionary

痴迷的幻想着不能实现的事情。

重編國語辭典

痴迷的幻想着不能实现的事情

維基詞典

Entry Composition

1 痴心 chīxīn infatuation
2 妄想 wàngxiǎng
  1. to attempt vainly
  2. a vain attempt
  3. delusion

Related entries

侥幸心理 jiǎoxìngxīnlǐ
  1. trusting to luck
  2. wishful thinking
痴想 chīxiǎng
  1. to daydream
  2. wishful thinking
  3. pipe dream