upset

/ˈʌpset/ noun [C]

Definition

SPORT › when someone beats the player or team that was expected to win: After Harding won the second set, a major upset seemed likely.

a stomach/tummy upset › UK an illness in the stomach

PROBLEM › a difficulty or problem: We had the usual upsets but overall the day went well.

(Definition of upset noun from the Cambridge Learner's Dictionary © Cambridge University Press)

to not be trusted or popular because people think you have done something bad

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