相關(guān)單詞同義詞useless, invalid, 近義詞 ineffectual （東西）無效的..., futile 無效的, fruitless 不成功的, abortive 失敗的, negative 否定的, worthless 無價值的, invalid 無效的, unsuccessful 不成功的, unproductive 不生產(chǎn)的, lame 無說服力的, useless 無用的, vain 自負(fù)的, hopeless 沒有希望的, feeble 虛弱的, uneffective 無效的, inefficient 無效率的, unable 不能的反義詞effective, 有效的臨近詞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