Thesaurus

Synonyms for Lousy include:

abominable, atrocious, Augean, awful, bad, bedraggled, befouled, begrimed, bespattered, besplashed, black, buggy, cobwebby, corked, corky, crappy, deplorable, dingy, dirty, dirty-faced, disobedient, distressing, draggled, dreadful, dust-covered, dusty, evil, faecal, fearful, fecal, feculent, filthy, flyblown, foul, fouled, frightful, greasy, grimy, grotty, grubby, grungy, hard, hateful, hopeless, horrid, icky, ill, impure, incompetent, lamentable, lousy, maculate, mean, mediocre, mischievous, mucky, muddy, nasty, naughty, negative, no-good, oily, painful, pitiful, poor, pretty, ratty, raunchy, rotten, rubber, sad, scummy, severe, smudgy, smutty, snot-nosed, snotty, soiled, sooty, sordid, sorry, spattered, splashed, squalid, stinking, stinky, swingeing, terrible, tough, travel-soiled, travel-stained, unclean, uncleanly, uncool, unfavorable, unfavourable, unpleasant, unskilled, unspeakable, unsuitable, unswept, untidy, unwashed, worse, worst

lousy is a ADJ.