相关单词同義詞useless, invalid, 近義詞 ineffectual （東西）無傚的..., futile 無傚的, fruitless 不成功的, abortive 失敗的, negative 否定的, worthless 無價值的, invalid 無傚的, unsuccessful 不成功的, unproductive 不生産的, lame 無說服力的, useless 無用的, vain 自負的, hopeless 沒有希望的, feeble 虛弱的, uneffective 無傚的, inefficient 無傚率的, unable 不能的反義詞effective, 有傚的臨近詞ineffectual, ineffable, ineffectively, ineffectiveness, ineffective call, ineffective rise, ineffective code, ineffective time, ineffective dose, ineffective tiller, ineffective market, ineffective strain相似詞inebriate, inebriated, inedible, ineffable, ineffectual, inefficient, inelastic, inelegant, 返回 ineffective