Synonyms for Lousy (same or very similar meaning)
WordNet sense 1 (vile; despicable):
filthyWordNet sense 2 (offensive or even (of persons) malicious):
awful, nastyWordNet sense 3 (very bad):
crappy, icky, rotten, shitty, stinking, stinkyWordNet sense 4 (soiled or likely to soil with dirt or grime):
dirty, unclean, soiledFrom the ODE community, based on WordNetadd/edit