Synonyms of impair

1 Syllable
ding, blunt, maim, spoilt, spoil, mars, hurt, tare, bant, queer, tweak, tore, mar, maims
2 Syllables
weaken, worsen, hacking, tarnish, chafed, chafe, harming, deadens, maiming, shatters, queered, lessens, riving, riven, deform, hurting, rived, mangling, rifting, deaden, sapped, banting, rifted, sapping, worsens, disbars, tearing, benching, queering, chafing, splutter, mangle, hamstring, spoiling, mangled, deforms, destroy, cracking, jigsaw, cheapen, total, benched, disbar, shatter, hamstrung, marred, lessen, blemish, marring, weakens, riddled, unstring, splutters, unfit, x-out
3 Syllables
circumduct, disannul, minify, ravaged, disable, damage, prepossess, unbrace, worsened, injuring, tarnishing, disserve, spluttered, abused, corroded, injure, tarnishes, disbarred, spluttering, unbraced, misshaped, misshape, weakening, reduce, worsening, ribboned, bankrupting, evulse, decrease, defacing, minified, lessened, tarnished, corroding, vitiate, bankrupted, envenoms, blemished, deforming, diminish, corrode, unbracing, degrade, disabling, minifying, shattered, deadening, defaced, ravaging, shattering, unstringing, envenom, abusing, enfeeble, devalue, empoison, debase, deadened
4 Syllables
vandalized, vandalizing, unstrengthened, deescalate, disqualifies, disfranchising, disfranchise, disentitle, vandalize, disqualifying, etherize, disqualified, disfranchised, etherizing, prejudice, undermine, undermined, enervate, etherized, envenomed, devaluate, splinterize, envenoming, disqualify
5 Syllables
sophisticate, debilitate, adulterate, immobilize, invalidating, deteriorate, invalidated, immobilized, deteriorating, immobilizing, adulterating, de-escalate, invalidate