V. WORDS RELATING TO THE VOLUNTARY POWERS; INDIVIDUAL VOLITION

IV. ANTAGONISM

1. Conditional antagonism

Opponent.

[Antonyms: auxiliary.]

[Nouns] opponent, antagonist, adversary; adverse party, opposition; enemy [more]; assailant.

oppositionist, obstructive; brawler, wrangler, brangler, disputant; filibuster [U.S.], obstructionist.

malcontent; Jacobin, Fenian; demagogue, reactionist.

rival, competitor.