Home › Words › A › againsteragainsteragainster means one who opposes something.EtymologyFrom against + -er.nounOne who opposes something.e.g.“They felt that the fellow was a quockerwodger rather than a politician, an againster rather than a true American, an oppositionist in fundamental things rather than a sincere patriot.” — 1944, Morris Allison Bealle, Washington Squirrel Cage, page 9:Definitions & examples from Wiktionary (CC BY-SA 3.0).Words closest in meaningBy meaning, not spelling — each word's AI semantic fingerprint, nearest first.opposer 73% match — One who opposes, one who shows opposition. vs againster →anti 71% match — Opposed to something. vs againster →gainstander 71% match — One who stands in opposition to (a belief, cause, etc.); an opposer vs againster →antisteroid 70% match — Opposing the use of steroids. vs againster →aginner 69% match — An oppositional person, especially one opposed to government actions and projects. vs againster →antipathist 69% match — An enemy or opponent. vs againster →oppositionist 69% match — A person who opposes; especially a member of an official opposition vs againster →antismoker 68% match — One who opposes smoking, particularly the smoking of tobacco. vs againster →