Disorder
Part of speech: noun
Definition: Absence of order; state of not being arranged in an orderly manner. A disturbance of civic peace or of public order. A physical or psychical malfunction.
Example sentence: The reason most people get eating disorders is because they want to be skinny, but they do it stupidly, and they stop eating completely - nobody knows anything about nutrition or exercise. I think it should be a separate subject in school.
Upset
Part of speech: adjective
Definition: Of a person, angry, distressed or unhappy.
Part of speech: noun
Definition: Disturbance or disruption.(sports) An unexpected victory of a competitor that was not favored.(automobile insurance) An overturn.
Part of speech: verb
Definition: To make (a person) angry, distressed, or unhappy.To disturb, disrupt or adversely alter (something).To tip or overturn (something).To defeat unexpectedly.
Example sentence: One mustn't close one's eyes to difficulty and to shortcomings; the more one recognizes them, the less they upset one.