The Collaborative International Dictionary of English v.0.48:

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.
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            I will never trust his word after.    --Shak.
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            He that trusts every one without reserve will at
            last be deceived.                     --Johnson.
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   2. To give credence to; to believe; to credit.
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            Trust me, you look well.              --Shak.
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   3. To hope confidently; to believe; -- usually with a phrase
      or infinitive clause as the object.
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            I trust to come unto you, and speak face to face.
                                                  --2 John 12.
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            We trustwe have a good conscience.    --Heb. xiii.
                                                  18.
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   4. to show confidence in a person by intrusting (him) with
      something.
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            Whom, with your power and fortune, sir, you trust,
            Now to suspect is vain.               --Dryden.
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   5. To commit, as to one's care; to intrust.
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            Merchants were not willing to trust precious cargoes
            to any custody but that of a man-of-war. --Macaulay.
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   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.
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   7. To risk; to venture confidently.
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            [Beguiled] by thee
            to trust thee from my side.           --Milton.
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The Collaborative International Dictionary of English v.0.48:

Trusting \Trust"ing\, a.
   Having or exercising trust; confiding; unsuspecting;
   trustful. -- Trust"ing*ly, adv.
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WordNet (r) 3.0 (2006):

trusting
    adj 1: inclined to believe or confide readily; full of trust;
           "great brown eye, true and trustful"- Nordhoff & Hall
           [syn: trustful, trusting] [ant: distrustful]