idiotic

形容词 idiotic:

1. insanely irresponsible
   同义词：crackbrained
2. incongruous;inviting ridicule
   同义词：absurd, cockeyed, derisory, laughable, ludicrous, nonsensical, preposterous, ridiculous
3. having a mental age of three to seven years
   同义词：imbecile, imbecilic

1. Ah Q looks idiotic before Master Zhao.
   阿Q在赵太爷面前显得呆头呆脑。
2. Don't be idiotic!
   别那麽傻了！

id.i.ot.ic

adj.（形容词）
Showing foolishness or stupidity.
愚蠢的：表现愚蠢或蠢笨的
Exhibiting idiocy.
表现出智商很低的

【引伸】
id.iot.ically
adv.（副词）