The Collaborative International Dictionary of English v.0.48:

Unfixed \Unfixed\
   See fixed.

WordNet (r) 3.0 (2006):

unfixed
    adj 1: not firmly placed or set or fastened [ant: fixed]
    2: lacking definition or definite content; "nebulous reasons";
       "unfixed as were her general notions of what men ought to
       be"- Jane Austen [syn: nebulous, unfixed]

Moby Thesaurus II by Grady Ward, 1.0:

127 Moby Thesaurus words for "unfixed":
   adrift, afloat, alternating, amorphous, at issue, capricious,
   changeable, changeful, clear, conditional, conditioned, contingent,
   dependent, depending, desultory, deviable, dizzy, eccentric,
   erratic, fast and loose, fickle, fitful, flickering, flighty,
   flitting, floating, fluctuating, freakish, free, giddy, groundless,
   impetuous, impulsive, in question, in suspense, in the balance,
   inconclusive, inconsistent, inconstant, indecisive, infirm,
   irregular, irresolute, irresponsible, loose, mazy, mercurial,
   moody, not following, not proved, open, pendent, pending, rambling,
   restless, rickety, roving, scatterbrained, shaky, shapeless,
   shifting, shifty, shuffling, spasmodic, spineless, suspenseful,
   unaccountable, unanchored, unascertained, unattested,
   unauthenticated, unbound, uncertain, uncertified, unconfirmed,
   uncontrolled, uncorroborated, uncounted, undecided, undemonstrated,
   undependable, undetermined, undisciplined, undone, unestablished,
   unfastened, unfounded, unpredictable, unproved, unproven,
   unreliable, unrestrained, unsettled, unshown, unstable,
   unstable as water, unstaid, unsteadfast, unsteady, unstuck,
   unsubstantiated, unsupported, unsupported by evidence, unsustained,
   untested, untied, untold, untried, unvalidated, unverified,
   up for grabs, vacillating, vagrant, variable, vicissitudinary,
   vicissitudinous, volatile, wandering, wanton, wavering, wavery,
   wavy, wayward, whimsical, wishy-washy, without basis,
   without grounds