The Collaborative International Dictionary of English v.0.48:

Mature \Ma*ture"\, v. t. [imp. & p. p. Matured; p. pr. & vb.
   n. Maturing.] [See Maturate, Mature.]
   To bring or hasten to maturity; to promote ripeness in; to
   ripen; to complete; as, to mature one's plans. --Bacon.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Mature \Ma*ture"\, v. i.
   1. To advance toward maturity; to become ripe; as, wine
      matures by age; the judgment matures by age and
      experience.
      [1913 Webster]

   2. Hence, to become due, as a note.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Mature \Ma*ture"\, a. [Compar. Maturer; superl. Maturest.]
   [L. maturus; prob. akin to E. matin.]
   [1913 Webster]
   1. Brought by natural process to completeness of growth and
      development; fitted by growth and development for any
      function, action, or state, appropriate to its kind;
      full-grown; ripe.
      [1913 Webster]

            Now is love mature in ear.            --Tennison.
      [1913 Webster]

            How shall I meet, or how accost, the sage,
            Unskilled in speech, nor yet mature of age? --Pope.
      [1913 Webster]

   2. Completely worked out; fully digested or prepared; ready
      for action; made ready for destined application or use;
      perfected; as, a mature plan.
      [1913 Webster]

            This lies glowing, . . . and is almost mature for
            the violent breaking out.             --Shak.
      [1913 Webster]

   3. Of or pertaining to a condition of full development; as, a
      man of mature years.
      [1913 Webster]

   4. Come to, or in a state of, completed suppuration.
      [1913 Webster]

   Syn: Ripe; perfect; completed; prepared; digested; ready.

   Usage: Mature, Ripe. Both words describe fullness of
          growth. Mature brings to view the progressiveness of
          the process; ripe indicates the result. We speak of a
          thing as mature when thinking of the successive stayes
          through which it has passed; as ripe, when our
          attention is directed merely to its state. A mature
          judgment; mature consideration; ripe fruit; a ripe
          scholar.
          [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

developed \developed\ adj.
   1. being changed over time so as to be e.g. stronger or more
      complete or more useful; as, the developed qualities of
      the Hellenic outlook; the state's well-developed
      industries. Oppositre of undeveloped. [Narrower terms:
      formulated; mature]
      [WordNet 1.5]

   2. made more useful and profitable as by building or laying
      out roads; -- of real estate. new houses are springing up
      on the developed tract of land near the river

   Syn: improved.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

mature
    adj 1: characteristic of maturity; "mature for her age" [ant:
           immature]
    2: fully considered and perfected; "mature plans" [syn:
       mature, matured]
    3: having reached full natural growth or development; "a mature
       cell" [ant: immature]
    4: fully developed or matured and ready to be eaten or used;
       "ripe peaches"; "full-bodied mature wines" [syn: ripe,
       mature] [ant: green, immature, unripe, unripened]
    5: (of birds) having developed feathers or plumage; often used
       in combination [syn: fledged, mature] [ant: immature,
       unfledged]
    v 1: develop and reach maturity; undergo maturation; "He matured
         fast"; "The child grew fast" [syn: mature, maturate,
         grow]
    2: develop and work out fully in one's mind; "I need to mature
       my thoughts"
    3: become due for repayment; "These bonds mature in 2005"
    4: cause to ripen or develop fully; "The sun ripens the fruit";
       "Age matures a good wine" [syn: ripen, mature]
    5: grow old or older; "She aged gracefully"; "we age every day--
       what a depressing thought!"; "Young men senesce" [syn:
       senesce, age, get on, mature, maturate]
    6: cause to ripen and discharge pus; "The oil suppurates the
       pustules" [syn: suppurate, mature]

Moby Thesaurus II by Grady Ward, 1.0:

282 Moby Thesaurus words for "mature":
   accomplish, accrue, adult, advance, age, aged, all ready, all set,
   archetypical, armed, armed and ready, assemble, attain majority,
   back, bear fruit, beautify, beget, big, blase, bloom, blooming,
   blossom, blossoming, blow, booted and spurred, breed, brew,
   briefed, bring forth, bring into being, bring to completion,
   bring to fruition, bring to maturity, budding, build, burgeon,
   burgeoning, call into being, cast, classic, coached, cocked, coin,
   come of age, come to fruition, come to maturity, complete, compose,
   compound, conceive, concoct, construct, consummate, consummated,
   contrive, cook up, cosmopolitan, cosmopolite, create, crescent,
   crown, culminate, cultivate, design, develop, developed, devise,
   discover, do to perfection, dream up, due, eke out, elaborate,
   embellish, engender, entire, equipped, erect, evolute, evolve,
   exemplary, experienced, expert, extrude, fabricate, fall due,
   familiarized, fashion, fill in, fill out, finish, finished, fledge,
   florescent, flourish, flourishing, flower, flowering, form,
   formulate, frame, fudge together, fulfill, full, full-blown,
   full-fledged, full-grown, full-scale, fully developed, gather,
   generate, germinate, get up, give being to, give rise to, global,
   good and ready, groomed, grow, grow up, growing, grown, grown up,
   grown-up, hatch, hypertrophied, hypertrophy, improve, improvise,
   in arms, in arrear, in arrears, in battle array, in full bloom,
   in readiness, in the saddle, increase, indite, informed, intact,
   invent, knowing, knowledgeable, leave the nest, loaded,
   loaded for bear, make, make do with, make good, make up,
   manufacture, marriable, marriageable, masterful, masterly,
   maturate, maturated, matured, maturescent, mellow, mellowed, mint,
   mobilized, model, mold, mushroom, not born yesterday, nubile,
   of age, of marriageable age, old, on the mark, originate, outgrow,
   outstanding, overdevelop, overdeveloped, overdue, overgrow,
   overgrown, overtop, owed, owing, patch together, payable, perfect,
   perfected, piece out, piece together, plan, planned, polish,
   polished, practiced, prearranged, prefabricate, prepare, prepared,
   prepared and ready, prepped, primed, procreate, produce,
   proficient, progress, provided, psyched up, pullulate,
   put together, put up, quintessential, raise, reach its season,
   reach manhood, reach maturity, reach twenty-one, reach voting age,
   ready, ready for anything, rear, receivable, redeemable, refill,
   refine, refined, replenish, reproduce, ripe, ripen, ripened,
   round out, run up, sagacious, season, seasoned, set, set up,
   settle down, shape, shoot up, solid, sophisticated, spawn,
   spring up, sprout, sprout up, sprouting, strike out, temper,
   tempered, think out, think up, thrive, thriving, toga virilis,
   top off, total, tower, tried, tried and true, unabbreviated, uncut,
   undiminished, unexpurgated, unpaid, unsettled, up in arms, upshoot,
   upspear, upspring, upsprout, vegetate, veteran, vigilant, wax,
   well-prepared, whole, whomp up, world-wise, worldly, worldly-wise,
   write