The Collaborative International Dictionary of English v.0.48:

loosened \loosened\ adj.
   1. having constraints removed.

   Syn: freed.
        [WordNet 1.5 +PJC]

   2. straightened out; untangled.

   Syn: disentangled, unsnarled.
        [WordNet 1.5]

The Collaborative International Dictionary of English v.0.48:

Loosen \Loos"en\ (l[=oo]s"'n), v. t. [imp. & p. p. Loosened
   (l[=oo]s"'nd); p. pr. & vb. n. Loosening.] [See Loose, v.
   t.]
   1. To make loose; to free from tightness, tension, firmness,
      or fixedness; to make less dense or compact; as, to loosen
      a string, or a knot; to loosen a rock in the earth.
      [1913 Webster]

            After a year's rooting, then shaking doth the tree
            good by loosening of the earth.       --Bacon.
      [1913 Webster]

   2. To free from restraint; to set at liberty..
      [1913 Webster]

            It loosens his hands, and assists his understanding.
                                                  --Dryden.
      [1913 Webster]

   3. To remove costiveness from; to facilitate or increase the
      alvine discharges of. --Bacon.
      [1913 Webster]

WordNet (r) 3.0 (2006):

loosened
    adj 1: straightened out [syn: disentangled, loosened,
           unsnarled]