upset - definition of upset by the Free Online Dictionary, Thesaurus and Encyclopedia.

up·set (p-s t) v. up·set, up·set·ting, up·sets v.tr. 1. To cause to turn or tip over; capsize. 2. To disturb the functioning, order, or course of: Protesters upset the meeting by chanting and shouting. 3. To distress or perturb mentally or emotionally: Th

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