stupid adj.
VERBS appear, be, feel, look, seem, sound I felt really stupid when I realized what had happened. My sister made me look stupid in front of all my friends. | act (informal) I decided it was best to act stupid.
ADV. bloody (taboo), damn/damned, exceptionally, extremely, fucking (taboo), incredibly, monumentally, particularly, really, very | absolutely, completely, (just) plain, utterly That was just plain stupid! | not entirely I'm not entirely stupid. I checked the train times before we came out. | a bit, a little, pretty, quite, rather | enough, sufficiently He's stupid enough to believe anything. | crassly, grossly a crassly stupid thing to do
You can also check other dicts: stupid (English, 中文解释 ), wordnet sense, Collins Definition