ineffectual
adj. （东西）无效的；无益的；白费的；（人）无能的
副词：ineffectually 名词：ineffectuality
近义词：useless，unsuccessful，futile，powerless，ineffective，fruitless，vain，null，abortive，incompetent，indecisive，weak，feeble，lame，unimpressive，hopeless，inadequate，inefficient，inept，unavailing，unable，otiose，uneffective，
英英释义
Adjective
- not producing an intended effect;
"an ineffective teacher" "ineffective legislation"
- producing no result or effect;
"a futile effort" "the therapy was ineffectual" "an otiose undertaking" "an unavailing attempt"
- lacking in power or forcefulness;
"an ineffectual ruler" "like an unable phoenix in hot ashes"
例句
用作形容词(adj.)
- The searchlights were ineffectual in the fog.探照灯在雾中不起作用。
- All rescue measures proved ineffectual.所有抢救措施都证明无效。
- Her hands were almost ineffectual.她的手也几乎没有用。
- She had felt at the same time that he was helpless and ineffectual.同时她也看到了他的孤弱无能，无所作为。
- The years of ineffectual service counts big in the bestowal of rewards.几年徒劳无益的服务，在论功行赏时就大有关系。
- They made some ineffectual attempts to reform the law他们试图改革法律，结果只是徒劳。
- He won't be able to deal with the situation; he's too ineffectual.他无法应付局面