The Oxford Thesaurus An A-Z Dictionary of Synonyms - bad adj.

1) poor, wretched, inferior, defective, awful, worthless, miserable, egregious, execrable, substandard, unsatisfactory, disappointing, inadequate, non-standard, Colloq lousy, rotten, crummy, Slang Brit grotty, naff: Sometimes they would send him a letter, but he was a bad correspondent. We went to see a rather bad play the other night. 2) corrupt, polluted, vitiated, debased, base, vile, foul, rotten, miasmic, noxious, mephitic, unhealthy, poisonous, injurious, dangerous, harmful, hurtful, pernicious, deleterious, ruinous: It wasn't healthy to be so near the bad air of the sewer. 3) evil, ill, immoral, wicked, vicious, vile, sinful, depraved, awful, villainous, corrupt, amoral, criminal, wrong, unspeakable: The man was thoroughly bad and deserved everything he got. 4) unpleasant, offensive, disagreeable, inclement, severe, awful, unfavourable, adverse, inclement, unpleasant, Colloq lousy, rotten: Surely you're not going sailing in this bad weather?! 5 unfavourable, unlucky, unpropitious, unfortunate, inauspicious, troubled, grim, distressing, discouraging, unpleasant: Agreeing to do that job might yet turn out to have been a bad decision. 6) off, tainted, spoilt or spoiled, mouldy, stale, rotten, decayed, putrefied, putrid, contaminated: The fridge isn't working and all the food has gone bad. She ate a bad egg and felt ill the next day. 7) irascible, ill-tempered, grouchy, irritable, nasty, peevish, cross, crotchety, crabby, cranky, curmudgeonly: Don't go near the boss - he's been in a bad mood all day. 8) sorry, regretful, apologetic, contrite, rueful, sad, conscience-stricken, remorseful, upset: She felt bad about having invited me. 9) sad, depressed, unhappy, dejected, downhearted, disconsolate, melancholy; inconsolable: I feel bad about you losing your purse. 1) 0 naughty, ill-behaved, misbehaving, disobedient, unruly, wild; mischievous: Ronnie isn't a bad boy, he's just bored. 1) 1 distressing, severe, grave, serious, terrible, awful, painful: He was laid up with a bad case of the mumps.