ferment, n. 1. yeast, mold, bacteria, leaven, mother, mother of vinegar, Brit. Inf. barm; pepsin, enzyme.
2. fermentation, working, raising, transformation; effervescence, bubbling, boiling, seething, foaming.
3. tumult, commotion, hubbub, hurly-burly, racket, uproar, imbroglio, turbulence, turmoil, embroilment, confusion, stew, brouhaha, fuss, Inf. to-do; agitation, state of unrest, Inf. a fine state of affairs, Inf. a fine mess, Inf. a can of worms; sound and fury, Inf. barrel of trouble; heat, glow, fever, furor, frenzy.
-v. 4. leaven, raise; work, turn, rise, foam, bubble, effervesce, boil, seethe; pickle, sour, clabber.
5. excite, inflame, foment, incite, provoke, arouse, stir up, agitate, bring to a head or to the boiling point; start trouble, Si. raise Cain.
ferocious, adj. 1. bestial, brutish, beastly, beastlike, Obs. belluine, feral, ferine; untamed, wild, undomesticated, unbroken; predatory, predacious, raptorial; rapacious, ravenous, ravening.
2. fierce, savage, vicious, fell, truculent; tigerish, wolfish, lupine; brutal, violent, inhuman, barbarous, barbaric, hellish, Tartarian, Hunnish, Vandalic, Gothic; murderous, homicidal, slaughterous, bloodthirsty, sanguinary; sadistic, animalistic, cannibalistic, fiendish, ogreish; diabolical, demonic, demoniac, devilish; terrible, harsh, dire, grim, severe; unrelenting, relentless, remorseless, implacable, inexorable, grinding.
3. pitiless, merciless, heartless, cruel, ruthless; hardhearted, stony-hearted, marble-hearted, cold-blooded.
4. extreme, great, grave; intense, acute, sharp, poignant; flaming, vivid.
ferocity, n. fierceness, ferociousness, brutality, viciousness, truculence, ferity, brutishness; cruelty, inhumanity, savagery, ruthlessness, blood-thirstiness, fiendishness, barbarity.
ferret, v. 1. Usu.
ferret out drive or hunt jut, smoke out, search out, track down, Inf. bird-dog; smell out, sniff out, grub up, Inf. nose out; bring to light, unearth, disinter, exhume, dig out, run down, trace down, look up, root out; fish out, worm out; pry into, nose around, search about, look into; fathom, Inf. get at, Inf. see daylight.
2. harry, annoy, badger, hound, tease, harass, persecute, drive from pillar to post; distress, worry, plague, nettle, afflict; torment, trouble, fret, bother, pester; incommode, disturb, exhaust, wear down, Inf. get to [s.o.]
ferry, v. come and go, go back and forth, shuttle; play, run, traverse, beat, pass; convey across, carry over, pilot, taxi, chauffeur.
fertile, adj. 1. fecund, fruitful, productive, fruc-tuous, fruit-bearing, feracious, fructiferous, frugifer-ous; generative, potent, virile, reproductive, propagative, fructificative, progenerative.
2. prolific, teeming, profuse, bounteous; pullulating, alive with, Inf. crawling with, swarming; proliferous, proliferating, spawning, multiparous; abundant, plenteous, full, copious, Rare, uberous; exuberant, luxurious, lush, rank, rife, rich, fat, flush.
3. creative, inventive, resourceful, ingenious; original, ideaful, visionary, constructive, formative.
fertility, n. 1. fecundity, fruitfulness, Bot. proliferous, prolificacy, prolificacy, fruitiferousness; productiveness, Rare, feracity; luxuriance, lushness, exuberance, richness, Rare, uberty; copiousness, fullness, rankness, profusion, profuseness.