qualm
/kwɑːlm/noun
1- an uneasy feeling of doubt, worry, or fear, especially about one's own conduct; a misgiving（尤指对自己行为的）疑惧, 疑虑, 担忧：
military regimes generally have no qualms about controlling the press.
军事政权一般对新闻控制无所顾忌。
1.1
- a momentary faint or sick feeling瞬间的恶心, 不适。
派生词
qualmish
adjective词源
early 16th cent. （in the sense 'momentary sick feeling'）： perhaps related to Old English cw（e）alm 'pain'， of Germanic origin.