Pronunciation: /ʌnˈhæpən/
verb to reverse or undo an event or occurrence, to make something not happen
A1 I wish I could make the bad things unhappen.
A2 If only we could unhappen the mistakes we've made.
B1 It's impossible to unhappen the past, but we can learn from it.
B2 She wanted to unhappen the argument they had, but it was too late.
C1 As much as he wished he could unhappen the accident, he knew he had to live with the consequences.
C2 The scientist's experiment had unforeseen consequences, and he desperately tried to unhappen it.
formal It is impossible for the event to unhappen as it has already occurred.
informal There's no way to make what happened unhappen, so we have to deal with the consequences.
slang We can't just snap our fingers and make it all unhappen, unfortunately.
figurative Sometimes I wish I could press rewind and make it all unhappen, but life doesn't work that way.
unhappened
unhappen
more unhappen
most unhappen
unhappens
will unhappen
has unhappened
is unhappening
unhappen
unhappen
to unhappen
unhappening
unhappened