Antonym vs. Oxymoron: What's the Difference?

Antonym and Oxymoron Definitions
Antonym
A word having a meaning opposite to that of another word
The word "wet" is an antonym of the word "dry.".
Oxymoron
A rhetorical figure in which incongruous or contradictory terms are combined, as in a deafening silence and a mournful optimist.
Antonym
(semantics) A word which has the opposite meaning of another word.
“rich” is an antonym of “poor”; “full” is an antonym of “empty”
Oxymoron
(rhetoric) A figure of speech in which two words or phrases with opposing meanings are used together intentionally for effect.
Antonym
A word that describes one end of a scale, while its opposite describes the other end, such as large versus small; a gradable antonym.
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Oxymoron
A contradiction in terms.
Antonym
A word of opposite meaning; a counterterm; - used as a correlative of synonym.
Oxymoron
A figure in which an epithet of a contrary signification is added to a word; e. g., cruel kindness; laborious idleness.
Antonym
Two words that express opposing concepts;
To him the opposite of gay was depressed
Oxymoron
Conjoining contradictory terms (as in `deafening silence')
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