serious/ˋsIrIəs; ˈsIəriəs/adj 1 a serious problem, situation etc is very bad and worrying 严重的﹐重大的: Drugs are a serious problem here. 毒品是这里的一个严重问题。The damage was not serious. 损坏并不严重。serious illness/injury/accident etc 重病/重伤/重大事故等2 be serious to really mean something that you say, and not be joking or pretending 是认真的﹐并非开玩笑: Are you serious about becoming a model? 你想当模特儿是认真的吗?3 something that is serious is important and should not be laughed at 重要的﹐严肃的: Be quiet. This is serious. 请安静﹐这事很重要。Bullying is a serious matter . 欺凌霸道是很严重的事情。serious thought/discussion etc We need to have a serious talk about your future. 我们该严肃地谈一谈你的将来了。4 a serious person is always quiet and sensible and does not often laugh〔人〕严肃的﹐庄重的—seriousness n [U]