American English

Definition of afterthought noun from the Oxford Advanced American Dictionary

 

afterthought

 noun
noun
NAmE//ˈæftərˌθɔt//
 
[usually singular]
 
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a thing that is thought of, said, or added later, and is often not carefully planned They only invited Jack and Sarah as an afterthought.
See the Oxford Advanced Learner's Dictionary entry: afterthought