Dreye權威釋義

n.

瘋子，瘋傻的人[C]
Who was the lunatic who gave the baby matches to play with?
是哪個白痴把火柴拿給嬰兒玩的？

a.

瘋的，精神錯亂的
愚妄的，瘋狂的
The man's lunatic behavior is a menace to society.
那個人的瘋狂行為構成對社會的威脅。
a lunatic proposal
愚妄的提議

反義:

a.「精神異常的；愚蠢的」的反義字

同義參見:

以上來源於：《英漢大辭典》

n.

a person who is mentally ill (not in technical use).

▸an extremely foolish person.

ME: from OFr. lunatique, from late L. lunaticus, from L. luna ‘moon’ (from the belief that changes of the moon caused intermittent insanity).

以上來源於：《簡明牛津英語詞典》

以上來源於：《英漢醫學詞典》