狂きょう想そう

noun

wild ideas; crazy thoughts; fantastical notions

Refers to unrealistic, irrational, or wildly imaginative ideas, often with a slightly literary or emphatic tone. Not an everyday word for 'silly thought'.

• 彼かれの頭あたまの中なかは狂きょう想そうでいっぱいだった。

  His head was full of wild ideas.

• その小しょう説せつは作さく者しゃの狂きょう想そうが生うみ出だした世せ界かいだ。

  That novel is a world born from the author's fantastical notions.