Etymology[edit]
Literally, “mustard after the meal”.
Pronunciation[edit]
- IPA(key): /ˌmɔs.tərt naː də ˈmaːl.tɛi̯t/
mosterd na de maaltijd m (uncountable)
- (idiomatic) a solution to a problem that has already occurred, closing the stable door after the horse has bolted.