unclean

1 having or showing lowered moral character or standards there's something unclean about this whole business Synonyms debased, debauched, decadent, degenerate, degraded, demoralized, depraved, dissipated, dissolute, jackleg, libertine, loose, perverse, perverted, rakehell (or rakehelly), rakish, reprobate, sick, corrupt, unwholesome, warpedRelated Words bent [chiefly British], crooked, cutthroat, dishonest, unethical, unprincipled, unscrupulous; contaminated, spoiled, tainted; bad, evil, immoral, iniquitous, miscreant, nefarious, sinful, vicious, wickedNear Antonyms incorruptible; ethical, honest, principled; good, moral, righteous, virtuousAntonyms pure, uncorrupt, uncorrupted

2 not clean a lackadaisical waiter who tried to set our table with smudged glasses and unclean silverware Synonyms bedraggled, befouled, begrimed, bemired, besmirched, black, blackened, cruddy, dingy, draggled, dusty, filthy, foul, grimy, grotty [chiefly British], grubby, grungy, mucky, muddy, nasty, smudged, smutty, soiled, sordid, stained, sullied, dirty, uncleanlyRelated Words contaminated, defiled, germy, impure, polluted, tainted; insanitary, uncleaned, unsanitary, unsterile, unsterilized, unwashed; greasy, gunky; chaotic, cluttered, confused, disarranged, disarrayed, disheveled (or dishevelled), disordered, jumbled, littered, messed, messy, muddled, mussed, mussy, rumpled, scruffy, sloppy, slovenly, unkempt, untidy; raunchy, scuzzy [slang], shabby, skanky [slang], sleazy, squalid; collied [chiefly British dialect], crocked [dialect], fuliginous, sootyNear Antonyms clear, limpid, pure; cleaned, cleansed, combed, groomed, neat, ordered, orderly, tidy; bleached, purified, whitened; bright, flawless, perfect, shiny, sparkling, unspotted, untouched; taintless, unblemished, undefiled, unpolluted, untainted, virgin, wholesomeAntonyms clean, cleanly, immaculate, spick-and-span (or spic-and-span), spotless, stainless, ultraclean, unsoiled, unstained, unsullied