Adversative Definition

ăd-vûrsə-tĭv

adjective

Expressing antithesis or opposition.

The adversative conjunction but .

American Heritage

Expressing opposition or antithesis, as the words but, yet, however.

Webster's New World

(linguistics) Expressing opposition or difference.

Wiktionary

Synonyms:

noun

A word that expresses antithesis or opposition.

American Heritage

An adversative word.

Webster's New World

(rare, dated) Something, particularly a clause or conjunction, which is adversative.

Wiktionary

Other Word Forms of Adversative

Singular:

adversative

Plural:

adversatives

Latin adversātīvus from adversātus past participle of adversārī to oppose from adversus against adverse

From American Heritage Dictionary of the English Language, 5th Edition
From Latin adversativus (“of conjunctions, expressing opposition”)

From Wiktionary