having or showing an excessively high opinion of one's appearance, abilities, or worth 自负的,自视过高的,爱虚荣的 their flattery made him vain. 他们的吹捧使他自命不凡。
[attrib.]producing no result; useless 无结果的,无效的 a vain attempt to tidy up the room. 徒劳的打扫房间。 the vain hope of finding work. 找到工作的落空希望。 ■having no meaning or likelihood of fulfilment 徒劳的,无意义的 a vain boast. 徒劳的自夸。
常用词组 in vain
without success or a result 徒劳地 they waited in vain for a response. 他们白等回音。
take someone's name in vain
use someone's name in a way that shows a lack of respect 轻慢谈到,随便议论
派生 vainly adverb 语源
Middle English (in the sense 'devoid of real worth'): via Old French from Latin vanus 'empty, without substance'