Source : Webster's Revised Unabridged Dictionary (1913)

Trust \Trust\, v. t. [imp. & p. p. {Trusted}; p. pr. & vb. n.
   {Trusting}.] [OE. trusten, trosten. See {Trust}, n.]
   1. To place confidence in; to rely on, to confide, or repose
      faith, in; as, we can not trust those who have deceived
      us.

            I will never trust his word after.    --Shak.

            He that trusts every one without reserve will at
            last be deceived.                     --Johnson.

   2. To give credence to; to believe; to credit.

            Trust me, you look well.              --Shak.

   3. To hope confidently; to believe; -- usually with a phrase
      or infinitive clause as the object.

            I trust to come unto you, and speak face to face.
                                                  --2 John 12.

            We trustwe have a good conscience.    --Heb. xiii.
                                                  18.

   4. to show confidence in a person by intrusting (him) with
      something.

            Whom, with your power and fortune, sir, you trust,
            Now to suspect is vain.               --Dryden.

   5. To commit, as to one's care; to intrust.

            Merchants were not willing to trust precious cargoes
            to any custody but that of a man-of-war. --Macaulay.

   6. To give credit to; to sell to upon credit, or in
      confidence of future payment; as, merchants and
      manufacturers trust their customers annually with goods.

   7. To risk; to venture confidently.

            [Beguiled] by thee to trust thee from my side.
                                                  --Milton.

Trusting \Trust"ing\, a.
   Having or exercising trust; confiding; unsuspecting;
   trustful. -- {Trust"ing*ly}, adv.

Source : WordNet®

trusting
     adj 1: inclined to believe or confide readily; full of trust;
            "great brown eye, true and trustful"- Nordhoff & Hall
            [syn: {trustful}] [ant: {distrustful}]
     2: tending to trust; "she had an open and trusting nature"