Answer: undergone

AnswerCrossword Clue
UNDERGONEExperienced.
UNDERGONEEndured
UNDERGONEOpposite of overcome?
UNDERGONEBeen through
UNDERGONEExperienced
undergoneUNDERGO, to be subjected to
undergoneExperience or be subjected to (something, typically something unpleasant, painful, or arduous)