harebrained

詳細解釋：

hare.brained

adj.（形容詞）
Foolish; flighty:
愚蠢的；輕浮的：
例句：
a harebrained scheme.
一項愚蠢的計畫

The first part of the compoundharebrained is often misspelled hair in the belief that the meaning of the word is .with a hair-sized brain. rather than .with no more sense than a hare..Thoughhairbrained has a long history, this spelling is not established usage.
複合詞harebrained 的前半部分常被錯拼為 hair ， 因為人們認為該詞的含義更接近於.沒什麼頭腦的.而不是.象野兔一樣愚蠢的.。雖然後一種寫法hairbrained 的產生已經有一段很長的歷史， 但這種寫法仍不是公認的用法