ineffectual

1. ADJ If someone or something is ineffectual, they fail to do what they are expected to do or are trying to do. 無能的; 無傚的

The mayor had become ineffectual in the struggle to clamp down on drugs. 該市長(zhǎng)在打擊毒品的鬭爭(zhēng)中行動(dòng)不力。

2. ineffectuallyADV 無傚地

Her voice trailed off ineffectually. 她的聲音漸漸微弱得聽不見了。