Upset can be either an antonym or a synonym.
Flustered would be a synonym.
Calm would be an antonym.
Since upset can be a noun, verb or an adjective,
There could three answers for each!
A synonym is a word with the same meaning as another word.An antonym is a word with an opposite meaning of a word.Ex.happysynonym:joyfulantonym:angry
Upset, down, sad, depressed, discontented
sob
Placate means to 'sooth or pacify' therefore the antonym would be 'agitate, upset or worry' The antonym of 'ferocious' would be 'gentle, innocent, kind, tame or tender
veranda deck patio
puposefully accidentally
A synonym is "inspection".......
A synonym is a word with the same meaning as another word.An antonym is a word with an opposite meaning of a word.Ex.happysynonym:joyfulantonym:angry
Expanded can be both a synonym and antonym. A synonym means something similar. Expanded could be a synonym of enlarged. An antonym means the opposite. Expanded would be a synoym to constricted.
upset
Anger, dull or upset.
agitate, irritate, provoke, upset or worry
Upset, down, sad, depressed, discontented
agitate, depress, discourage, sadden, upset, worry
BILK
tasty
sob