Covered with or smelling of mold:
— Moldy bread.
— A moldy (or musty) odor.

synonyms: mouldy, musty.

Roget 653: dirty, filthy, grimy; unclean, impure; soiled etc. v.; not to be handled with kid gloves; dusty, snuffy^†, smutty, sooty, smoky; thick, turbid, dreggy; slimy; mussy [U.S.].    slovenly, untidy, messy, uncleanly.    [of people] 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 etc. 401.    [of rotting living matter] 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 etc. v.; rotten as a pear, rotten as cheese.    crapulous etc. (intemperate) 954^†; gross etc. (impure in mind) 961; fimetarious^†, fimicolous^†.    ... show more

Roget 659: unimproved etc. (improve) etc. 658; deteriorated etc. v.; altered, altered for the worse; injured etc. v.; sprung; withering, spoiling etc. v.; on the wane, on the decline; tabid^†; degenerate; marescent^†; worse; the worse for, all the worse for; out of repair, out of tune; imperfect etc. 651; the worse for wear; battered; weathered, weather-beaten; stale, passe, shaken, dilapidated, frayed, faded, wilted, shabby, secondhand, threadbare; worn, worn to a thread, worn to a shadow, worn to the stump, worn to rags; reduced, reduced to a skeleton; far gone; tacky [U.S.].    decayed etc. v.; moth-eaten, worm-eaten; mildewed, rusty, moldy, spotted, seedy, time-worn, moss-grown; discolored; effete, wasted, crumbling, moldering, rotten, cankered, blighted, tainted; depraved etc. (vicious) 945; decrepid^†, decrepit; broke, busted, broken, out of commission, hors de combat [Fr.], out of action, broken down; done, done for, done up; worn out, used up, finished; beyond saving, fit for the dust hole, fit for the wastepaper basket, past work etc. (useless) 645.    at a low ebb, in a bad way, on one's last legs; undermined, deciduous; nodding to its fall etc. (destruction) 162; tottering etc. (dangerous) 665; past cure etc. (hopeless) 859; fatigued etc. 688; retrograde etc. (retrogressive) 283; deleterious etc. 649.    ... show more

Polish: zapleśniały, spleśniały