Synonyms for Sleazy:

adj.

•cheap (adjective)
cheesy, tawdry.
•dirty (adjective)
grimy, untruthful.
•disreputable (adjective)
broken-down, poor, common, seedy, squalid, shabby, shoddy, dilapidated, base, cheap, low, sordid, paltry.

n.

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

v.

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

Other synonyms:

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