English

Definition of might-have-been noun from the Oxford Advanced Learner's Dictionary

 

might-have-been

 noun
noun
BrE
 
; NAmE
 
[usually plural] (informal)
 
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an event or situation that could have happened or that you wish had happened, but which did not A Gore presidency remains one of the great political might-have-beens. I am not concerned with the might-have-beens but with the facts.
See the Oxford Advanced American Dictionary entry: might-have-been