not clean; dirty.

morally impure; evil; vile

unclean thoughts.

Chiefly Biblical . having a physical or moral blemish so as to make impure according to the laws, esp. the dietary or ceremonial laws

an unclean animal; unclean persons.

adjective

clean , hygienic , uncontaminated , unpolluted

adjective

bedraggled , befouled , besmirched , black , blurred , common , contaminated , corrupt , decayed , defiled , desecrated , dusty , evil , feculent , fetid , filthy , foul , grimy , impure , messy , muddy , nasty , polluted , profaned , putrescent , putrid , rancid , rank , rotten , sloppy , slovenly , smeared , smudged , soiled , sooty , sordid , spotted , squalid , stable , stained , stale , stinking , sullied , tainted , tarnished , unhealthful , vile , grubby , smutty , uncleanly , immoral , unchaste , dirty , obscene , soily , tref(jewish) , unwholesome