adj. 25B6; adjective
unclean premises : DIRTY, filthy, grubby, grimy, mucky, foul, impure, tainted, soiled, unwashed; polluted, contaminated, infected, insanitary, unhygienic, unhealthy, germy, disease-ridden; informal yucky, cruddy; Brit. informal grotty, gungy.
sex was considered unclean : SINFUL, immoral, bad, wicked, evil, corrupt, impure, unwholesome, sordid, disgusting, debased, degenerate, depraved.
an unclean meat : IMPURE; forbidden, taboo.
pure, halal, kosher.