| Main Entry: | |
| Part of Speech: | adjective |
| Definition: | decayed, decaying |
| Synonyms: | bad, bad-smelling, corroded, corrupt, crumbled, crumbling, decomposed, decomposing, disgusting, disintegrated, disintegrating, fecal, feculent, festering, fetid, foul, gross, infected, loathsome, loud, mephitic, moldering, moldy, noisome, noxious, offensive, overripe, perished, polluted, purulent, pustular, putrescent, putrid, putrified, rancid, rank, rotting, smelling, sour, spoiled, stale, stinking, strong, tainted, touched, unsound |
| Antonyms: | fresh, good, new, pleasant, undecayed |
| Main Entry: | sickly |
| Part of Speech: | adjective |
| Definition: | revolting |
| Synonyms: | bilious, cloying, insalubrious, mawkish, morbid, morose, nauseating, noisome, noxious, sick, unwholesome |
| Antonyms: | gentle, nice |
| Main Entry: | smelly |
| Part of Speech: | adjective |
| Definition: | having a bad odor |
| Synonyms: | evil-smelling, fetid, foul, foul-smelling, funky*, high, malodorous, mephitic, noisome, olid, putrid, rancid, rank, reeking, stinking, strong, strong- smelling, whiffy |
| Antonyms: | good-smelling, perfumed |
| Main Entry: | stale |
| Part of Speech: | adjective |
| Definition: | old, decayed |
| Synonyms: | dried, dry, faded, fetid, flat, fusty, hard, insipid, malodorous, musty, noisome, parched, rank, reeking, smelly, sour, spoiled, stagnant, stenchy, stinking, tasteless, watery, weak, zestless |
| Antonyms: | fresh, new |
| Main Entry: | stinking |
| Part of Speech: | adjective |
| Definition: | smelly |
| Synonyms: | fetid, foul, foul-smelling, funky*, malodorous, mephitic, noisome, odiferous, offensive, putrid, rancid, rank, reeking, stenchy, strong-smelling |
| Main Entry: | strong |
| Part of Speech: | adjective |
| Definition: | forceful on the senses |
| Synonyms: | biting, bold, bright, brilliant, concentrated, dazzling, effective, fetid, full-bodied, glaring, hard, heady, high, highly flavored, highly seasoned, hot, inebriating, intoxicating, loud, malodorous, noisome, piquant, potent, powerful, pungent, pure, rancid, rank, rich, robust, sharp, spicy, stark, stimulating, stinking, straight, strong-flavored, undiluted, unmixed |
| Antonyms: | delicate, low, mild, moderate, pale, soft |
| Main Entry: | ugly |
| Part of Speech: | adjective |
| Definition: | unpleasant, disagreeable |
| Synonyms: | base, despicable, dirty, disgusting, distasteful, filthy, foul, frightful, hideous, horrid, ignoble, low, low-down, mean, messy, monstrous, nasty, nauseous, noisome, objectionable, odious, offensive, pesky, repellent, repugnant, repulsive, revolting, scandalous, servile, shocking, sickening, sordid, sorry, terrible, troublesome, troublous, vexatious, vile, wicked, wretched |
| Antonyms: | agreeable, good, kind, nice, pleasant, pleasing |
| Main Entry: | unhealthy |
| Part of Speech: | adjective |
| Definition: | very bad in effect on well-being |
| Synonyms: | baneful, chancy, corrupt, corrupting, dangerous, degenerate, degrading, deleterious, demoralizing, detrimental, harmful, hazardous, insalubrious, jeopardous, morbid, nefarious, negative, noisome, noxious, perilous, perverse, poisonous, risky, rotten, treacherous, undesirable, unhealthful, unsanitary, unsound, unwholesome, villainous, virulent, wicked |
| Antonyms: | good, healthy |
| Main Entry: | poisonous |
| Part of Speech: | adjective |
| Definition: | harmful |
| Synonyms: | bad, baleful, baneful, corrupt, corruptive, dangerous, deadly, deleterious, destructive, detrimental, evil, fatal, hurtful, infective, lethal, malicious, malignant, mephitic, miasmatic, morbid, mortal, nocuous, noisome, noxious, peccant, pernicious, pestiferous, pestilential, poison, septic, toxic, toxicant, toxiferous, venomous, vicious, viperous, virulent |
| Antonyms: | benevolent, harmless, non-toxic |