unavailing
US /ˌʌn.əˈveɪ.lɪŋ/
UK /ˌʌn.əˈveɪ.lɪŋ/
1.
徒勞的, 無效的, 無益的
achieving little or nothing; ineffective
:
•
All their efforts to save the drowning man proved unavailing.
他們為營救溺水者所做的一切努力都徒勞無功。
•
Her pleas for mercy were unavailing.
她求饒的請求毫無作用。