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an improbable and unexpected victory; "the biggest upset since David beat Goliath"
the act of upsetting something; "he was badly bruised by the upset of his sled at a high speed"
used of an unexpected defeat of a team favored to win; "the Bills' upset victory over the Houston Oilers"
the act of disturbing the mind or body; "his carelessness could have caused an ecological upset"; "she was unprepared for this sudden overthrow of their normal way of living"
thrown into a state of disarray or confusion;
a tool used to thicken or spread metal (the end of a bar or a rivet etc.) by forging or hammering or swaging
disturb the balance or stability of; "The hostile talks upset the peaceful relations between the two countries"
afflicted with or marked by anxious uneasiness or trouble or grief; "too upset to say anything"; "spent many disquieted moments"; "distressed about her son's leaving home"; "lapsed into disturbed sleep";