Bad

Synonyms: Substandard, inferior, second-class, inadequate, not up to scratch, deficient, defective, shoddy, careless, dreadful, terrible, frightful, disgraceful, hopeless, laughable, miserable, third-rate, execrable, inept, ineffectual, rotten, useless, bum, appalling, pitiful, dire, the pits, chronic, pants, ropy, egregious, poor, second-rate, unsatisfactory, unacceptable, not up to par, imperfect, faulty, amateurish, negligent, awful, abominable, atrocious, deplorable, worthless, lamentable, sorry, diabolical, incompetent, inexpert, crummy, pathetic, woeful, lousy, abysmal, godawful, not up to snuff, duff, rubbish, a load of pants, and poxy.

Synonyms: Inauspicious, adverse, inopportune, inappropriate, unfavourable, untoward, disadvantageous, difficult, unpropitious, unsuitable, unfortunate, and disastrous.

Synonyms: Unpleasant, unwelcome, unfavourable, adverse, terrible, awful, distressing, parlous, disagreeable, unfortunate, unlucky, nasty, dreadful, grim, and regrettable.

Synonyms: Severe, grave, grievous, dreadful, awful, dire, frightful, life-threatening, serious, critical, acute, terrible, ghastly, grim, shocking, and peracute.

Synonyms: Harmful, detrimental, injurious, inimical, destructive, deleterious, unwholesome, damaging, undesirable, hurtful, dangerous, ruinous, and unhealthy.

Synonyms: Wicked, immoral, morally wrong, base, depraved, dissolute, criminal, nefarious, dishonest, unscrupulous, crooked, dirty, sinful, evil, corrupt, reprobate, degenerate, amoral, villainous, iniquitous, dishonourable, unprincipled, bent, and dastardly.

Synonyms: Injured, diseased, knackered, game, wounded, gammy, and crook.

Synonyms: Ill, sick, ailing, sickly, afflicted, infirm, out of sorts, not in good shape, under/below par, bedridden, on the sick list, queasy, nauseated, feeble, diseased, off colour, not up to snuff, funny, iffy, lousy, groggy, at death's door, ropy, dicky, crook, seedy, unwell, not (very) well, poorly, peaky, indisposed, liverish, not oneself, not up to par, in a bad way, invalided, valetudinarian, nauseous, weak, frail, infected, under the weather, laid up, peculiar, crummy, rough, green around the gills, like death warmed up, grotty, wabbit, and queer.

Synonyms: Rotten, decayed, decomposing, putrefied, mouldy, sour, rank, addled, worm-eaten, flyblown, putrefacient, off, decomposed, putrid, putrescent, mouldering, rancid, unfit for human consumption, maggoty, wormy, and putrefactive.

Synonyms: Guilty, remorseful, ashamed, contrite, full of regret, repentant, shamefaced, apologetic, conscience-stricken, guilt-ridden, chastened, sorry, regretful, penitent, and self-reproachful.

Synonyms: Invalid, counterfeit, false, fraudulent, phoney, worthless, fake, spurious, bogus, and dud.