Other forms: antitheses
The antithesis of something is its exact opposite. Not merely different — the reverse of it.
It takes of, and it is stronger than opposite because it implies a direct contrast rather than simple difference, so calling one thing the antithesis of another sets them against each other. Rhetoric uses it as a technique, where two contrasting ideas are placed in matching phrases for effect, and a great many famous sentences are built that way. Philosophy has thesis, antithesis and synthesis. The plural is antitheses.
1nounantithesisThe direct opposite of something.
“His quiet style is the antithesis of hers.”
Proto-Indo-European
*dʰeh₁-
Ancient Greek
ἀντίθεσις
Latin
antithesis
English, today
antithesis
Latin antithesis, itself a borrowing from Ancient Greek ἀντίθεσις. by surface analysis, anti- + thesis.
Etymology from Wiktionary, CC BY-SA