unclench

from The Collaborative International Dictionary of English v.0.48

Unclench \Un*clench"\, v. t.
   Same as {Unclinch}.
   [1913 Webster]

from The Collaborative International Dictionary of English v.0.48

Unclinch \Un*clinch"\, v. t. [1st pref. un- + clinch.]
   To cause to be no longer clinched; to open; as, to unclinch
   the fist. [Written also {unclench}.]
   [1913 Webster]

from Moby Thesaurus II by Grady Ward, 1.0

30 Moby Thesaurus words for "unclench":
      bare, clear, deobstruct, disclose, expose, free, manifest, patefy,
      reveal, unblock, uncase, unclog, unclutch, uncork, uncover,
      uncurtain, undo, undrape, unfold, unfoul, unlatch, unlock, unplug,
      unroll, unseal, unsheathe, unshut, unstop, unveil, unwrap

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