1. 脏话,粗话：赞助性行动,积极措施/affirmative action | 脏话,粗话/dirty word | 葬礼时的鸣枪队/firing party

2. 不恰当的话：不平稳的着陆/Roman candle landing | 不恰当的话/dirty word | 不切实际的计划/airy plan;wild scheme

noun

1. a word that is considered to be unmentionable

    e.g. `failure' is a dirty word to him

2. an offensive or indecent word or phrase

    Synonym: obscenitysmutvulgarismfilth