Word Study
rancid
CIDE DICTIONARY
rancid, a. [L. rancidus, fr. rancere to be rancid or rank.].
Having a rank smell or taste, from chemical change or decomposition; musty; as, rancid oil or butter. [1913 Webster]
OXFORD DICTIONARY
rancid, adj. smelling or tasting like rank stale fat.
Derivative
rancidity n. rancidness n.
Etymology
L rancidus stinking
THESAURUS
rancid
awful, bad, bad-smelling, barfy, blown, brackish, cloying, corrupt, decayed, disagreeable, fecal, fetid, foul, frowsty, frowy, frowzy, fulsome, funky, fusty, gamy, graveolent, high, icky, ill-smelling, loathsome, maggoty, malodorous, mawkish, mephitic, miasmal, miasmic, mildewed, mildewy, moldy, musty, nasty, nauseant, nauseating, nauseous, nidorous, noisome, noxious, odious, odorous, off, offensive, olid, overripe, poisonous, putrid, rank, reasty, reasy, rebarbative, reechy, reeking, reeky, repulsive, ripe, rotten, sickening, smellful, smelling, smelly, sour, soured, spoiled, spoilt, stale, stenchy, stinking, strong, stuffy, sulfurous, tainted, turned, vile, vomity, weevily, yuckyROGET THESAURUS
rancid
Uncleanness
N uncleanness, impurity, immundity, immundicity, impurity, defilement, contamination, defoedation, soilure, soiliness, abomination, leaven, taint, tainture, fetor, decay, putrescence, putrefaction, corruption, mold, must, mildew, dry rot, mucor, rubigo, slovenry, slovenliness, squalor, dowdy, drab, slut, malkin, slattern, sloven, slammerkin, slammock, slummock, scrub, draggle-tail, mudlark, dust-man, sweep, beast, dirt, filth, soil, slop, dust, cobweb, flue, smoke, soot, smudge, smut, grit, grime, raff, sossle, sozzle, sordes, dregs, grounds, lees, argol, sediment, settlement heeltap, dross, drossiness, mother, precipitate, scoriae, ashes, cinders, recrement, slag, scum, froth, hogwash, ditchwater, dishwater, bilgewater, rinsings, cheeseparings, sweepings, offscourings, outscourings, off scum, caput mortuum, residuum, sprue, fecula, clinker, draff, scurf, scurfiness, exuviae, morphea, fur, furfur, dandruff, tartar, riffraff, vermin, louse, flea, bug, chinch, mud, mire, quagmire, alluvium, silt, sludge, slime, slush, slosh, sposh, spawn, offal, gurry, lientery, garbage, carrion, excreta, slough, peccant humor, pus, matter, suppuration, lienteria, faeces, feces, excrement, ordure, dung, crap, shit, sewage, sewerage, muck, coprolite, guano, manure, compost, dunghill, colluvies, mixen, midden, bog, laystall, sink, privy, jakes, toilet, john, head, cess, cesspool, sump, sough, cloaca, latrines, drain, sewer, common sewer, Cloacina, dust hole, sty, pigsty, lair, den, Augean stable, sink of corruption, slum, rookery, dirty, filthy, grimy, unclean, impure, soiled, not to be handled with kid gloves, dusty, snuffy, smutty, sooty, smoky, thick, turbid, dreggy, slimy, mussy, slovenly, untidy, messy, uncleanly, unkempt, sluttish, dowdy, draggle-tailed, uncombed, unscoured, unswept, unwiped, unwashed, unstrained, unpurified, squalid, lutose, slammocky, slummocky, sozzly, nasty, coarse, foul, offensive, abominable, beastly, reeky, reechy, fetid, decayed, moldy, musty, mildewed, rusty, moth-eaten, mucid, rancid, weak, bad, gone bad, etercoral, lentiginous, touched, fusty, effete, reasty, rotten, corrupt, tainted, high, flyblown, maggoty, putrid, putrefactive, putrescent, putrefied, saprogenic, saprogenous, purulent, carious, peccant, fecal, feculent, stercoraceous, excrementitious, scurfy, scurvy, impetiginous, gory, bloody, rotting, rotten as a pear, rotten as cheese, crapulous, gross, fimetarious, fimicolous, they that touch pitch will be defiled.Fetor
N fetor, bad, smell, bad odor, stench, stink, foul odor, malodor, empyreuma, mustiness, rancidity, foulness, stoat, polecat, skunk, assafoetida, fungus, garlic, stinkpot, fitchet, fitchew, fourmart, peccary, acridity, fetid, strong-smelling, high, bad, strong, fulsome, offensive, noisome, rank, rancid, reasty, tainted, musty, fusty, frouzy, olid, olidous, nidorous, smelling, stinking, putrid, suffocating, mephitic, empyreumatic.For further exploring for "rancid" in Webster Dictionary Online