Synonyms for Sleazy:

adj.

cheap (adjective)
tawdry, cheesy.
dirty (adjective)
untruthful, grimy.
disreputable (adjective)
base, broken-down, cheap, common, dilapidated, low, paltry, poor, seedy, shabby, shoddy, sordid, squalid.
vulgar (adjective)
animal, barbaric, barnyard, base, boorish, brazen, broad, brutish, cheap, chintzy, clumsy, coarse, coarse-grained, cockney, colloquial, common, crass, crude, degraded, depraved, earthy, garish, gaudy, glaring, graceless, gross, homespun, idiomatic, ignoble, ignominious, ill-bred, indelicate, inelegant, low, obscene, offensive, outlandish, philistine, profane, rank, raw, repulsive, revolting, rough, rude, salty, scandalous, shameless, sordid, tactless, tasteless, tawdry, unbecoming, undignified, unpolished, unrefined, unseemly, vulgar, in bad taste.

n.

corrupt, cunning, deceitful, devious, dishonest, dubious, fraudulent, unprincipled, unscrupulous, untruthful. bedraggled, better, broken-down, decrepit, dilapidated, dingy, faded, mangy, ratty, rundown, scrubby, shabby, shoddy, tattered, threadbare, Decaying, down-at-heel. good, lousy, miserable, paltry, poor, rotten, schlocky. shoddy (noun)
poor, shabby.
sleazy (noun)
bum, cheap, cheesy, chintzy, crummy, disreputable, inferior, punk, seamy, seedy, sordid, squalid, thin, tinny.

v.

dirty (verb)
contaminated, filthy, grimy, grubby, messy, unclean, unhygienic, unsanitary.

Other synonyms:

ratty, down-at-heel, schlocky. bedraggled, dingy, faded, mangy, poor, scrubby, shabby, shoddy, tattered, Decaying. decrepit, dilapidated, lousy, paltry. miserable, rundown. threadbare. rotten. broken-down. Other relevant words:
bedraggled, broken-down, bum, cheesy, crummy, decrepit, dilapidated, dingy, disreputable, faded, filthy, grimy, grubby, inferior, lousy, mangy, messy, miserable, paltry, poor, punk, ratty, rotten, rundown, scrubby, seamy, seedy, shabby, shoddy, squalid, tattered, thin, threadbare, tinny, Decaying, down-at-heel, schlocky.

Usage examples for sleazy

  1. It contained sleazy docks, prisons, gaming houses, and brothels. – Our Legal Heritage, 4th Ed. by S. A. Reilly
  2. Now I am mortally afraid of rats and mice, and what I had touched had the sleazy feel of frayed silk. – A Woman Named Smith by Marie Conway Oemler