1. to overturn: to upset a pitcher of milk.
2. to disturb mentally or emotionally; perturb: The incident upset her.
3. to disturb or derange completely; put out of order; throw into disorder: to upset a system; to upset a mechanism; to upset an apartment.
4. to disturb physically: It upset his stomach.
5. to defeat or overthrow an opponent that is considered more formidable, as in war, politics, or sports.
6. Metalworking. to thicken t
"people can be upset about people."
"people can be upset by letters."
"people can be upset at times."
"people can be upset at things."
"people can be upset about things."
This list can help you learn new vocabulary more quickly and be able explore other words more easily.