1 [count] : an occurrence in which a game, contest, etc., is won by a person or team that was expected to lose
▪ In a major upset, he took the gold medal. ▪ Her victory in the election was a big upset. ▪ an upset victory 2 : an unpleasant feeling of illness in your stomach [noncount] ▪ Spicy foods can cause stomach upset. [count] ▪ a minor stomach upset 3 : a period of worry and unhappiness caused by something that has happened [count] ▪ An emotional upset can affect your physical health. [noncount] ▪ a period of emotional upset
▪ In a major upset, he took the gold medal. ▪ Her victory in the election was a big upset. ▪ an upset victory




