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:

matured \matured\ adj.
   Fully grown.

   Syn: full-blown.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

matured
    adj 1: fully ripe; at the height of bloom; "a full-blown rose"
           [syn: full-blown, matured]
    2: fully considered and perfected; "mature plans" [syn:
       mature, matured]