The Collaborative International Dictionary of English v.0.48:

Profuse \Pro*fuse"\, a. [L. profusus, p. p. of profundere to
   pour forth or out; pro forward, forth + fundere to pour: cf.
   F. profus. See Fuse to melt.]
   1. Pouring forth with fullness or exuberance; bountiful;
      exceedingly liberal; giving without stint; as, a profuse
      government; profuse hospitality.
      [1913 Webster]

            A green, shady bank, profuse of flowers. --Milton.
      [1913 Webster]

   2. Superabundant; excessive; prodigal; lavish; as, profuse
      expenditure. "Profuse ornament." --Kames.
      [1913 Webster]

   Syn: Lavish; exuberant; bountiful; prodigal; extravagant.

   Usage: Profuse, Lavish, Prodigal. Profuse denotes
          pouring out (as money, etc.) with great fullness or
          freeness; as, profuse in his expenditures, thanks,
          promises, etc. Lavish is stronger, implying
          unnecessary or wasteful excess; as, lavish of his
          bounties, favors, praises, etc. Prodigal is stronger
          still, denoting unmeasured or reckless profusion; as,
          prodigal of one's strength, life, or blood, to secure
          some object. --Dryden.
          [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Profuse \Pro*fuse"\, v. t.
   To pour out; to give or spend liberally; to lavish; to
   squander. [Obs.] --Chapman.
   [1913 Webster]

WordNet (r) 3.0 (2006):

profuse
    adj 1: produced or growing in extreme abundance; "their riotous
           blooming" [syn: exuberant, lush, luxuriant,
           profuse, riotous]

Moby Thesaurus II by Grady Ward, 1.0:

160 Moby Thesaurus words for "profuse":
   abounding, abundant, affluent, aggrandized, alive with,
   all-sufficing, ample, amplified, aplenty, ballyhooed, bighearted,
   bottomless, bounteous, bountiful, bristling, bursting,
   considerable, copious, crawling, crowded, crowding, diffuse,
   diffusive, disproportionate, dissipative, easy come, easy go,
   effuse, effusive, epidemic, exaggerated, excessive, exhaustless,
   exorbitant, extravagant, extreme, exuberant, fat, fecund, fertile,
   flush, formless, free, freehanded, freehearted, fruitful, full,
   galore, generous, giving, gracious, grandiloquent, greathearted,
   gushing, gushy, handsome, high-flown, hospitable, hyperbolic,
   immoderate, in plenty, in profusion, in quantity, incontinent,
   inexhaustible, inflated, inordinate, intemperate, jam-packed,
   jammed, large, largehearted, lavish, liberal, lush, luxuriant,
   magnanimous, magnified, many, maximal, much, munificent, numerous,
   open, openhanded, openhearted, opulent, overdone, overdrawn,
   overemphasized, overemphatic, overestimated, overflowing,
   overgenerous, overgreat, overlarge, overlavish, overliberal,
   overpraised, oversold, overstated, overstressed, overwrought,
   packed, penny-wise and pound-foolish, plenitudinous, plenteous,
   plentiful, plenty, pleonastic, populous, pound-foolish, prevailing,
   prevalent, princely, prodigal, productive, profligate, profusive,
   proliferating, prolific, puffed, rampant, redundant, reiterative,
   repetitive, replete, rich, rife, riotous, running over,
   spendthrift, stintless, stretched, studded, superabundant,
   superlative, swarming, tautologous, teeming, thick, thick as hail,
   thick with, thick-coming, thriving, thronged, thronging, touted,
   ungrudging, unselfish, unsparing, unstinted, unstinting, wasteful,
   wealthy, well-found, well-furnished, well-provided, well-stocked,
   wholesale