in AM, use 美国英语用 off-color
1 ADJ-GRADED [verb-link ADJ] 不舒服的;身体欠佳的 If you say that you are feeling off-colour, you mean that you are slightly ill. 不舒服的;身体欠佳的 [British]
SYN ill, poorly [informal] , sick, funny [informal]
2 ADJ-GRADED 表现差强人意的;状态不佳的 If you say that someone's performance is off-colour, you mean that they are not performing as well as they usually do. 表现差强人意的;状态不佳的 [British, journalism]
3 ADJ-GRADED (笑话、言语)近乎下流的,不成体统的 An off-colour joke or remark is rather rude or offensive. (笑话、言语)近乎下流的,不成体统的
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