Synonyms to invader

assailant, adversary, aggressor, antagonist, assailer, assaulter, attacker, combatant, enemy, foe, foeman, mugger, opponent, opposing party, opposite camp, raider, the loyal opposition, the opposition, buttinsky, Dutch uncle, Paul, Polonius, admonisher, adviser, backseat driver, butt-in, confidant, consultant, counsel, counselor, crasher, encroacher, expert, gate-crasher, guide, infiltrator, instructor, interloper, intermeddler, intruder, kibitzer, meddler, mentor, monitor, nestor, nose, orienter, pragmatist, preceptist, prier, quidnunc, rubberneck, snoop, teacher, trespasser, unwelcome guest, outsider, Jim Crow, Uitlander, alien, apartheid, auslander, barbarian, case, character, color bar, crackpot, crank, deracine, displaced person, division, eccentric, emigre, ethnocentrism, exclusiveness, exile, fanatic, foreign devil, foreigner, gatecrasher, gringo, guest, hermit, hobo, insularity, insulation, isolation, know-nothingism, kook, lone wolf, loner, maverick, meshuggenah, narrowness, natural, newcomer, nonconformist, nut, odd fellow, oddball, oddity, original, out-g