[1] : WordNet (r) 2.0

untied
     adj 1: not tied syn: unfastened ant: tied
     2: with laces not tied; "teenagers slopping around in unlaced
        sneakers" syn: unlaced ant: laced
     3: not bound by shackles and chains syn: unchained, unfettered,
         unshackled
see also:
unfastened tied unlaced laced unchained unfettered 
unshackled 

[2] : Moby Thesaurus II by Grady Ward, 1.0

33 moby thesaurus words for "untied":
   adrift, afloat, aweigh, cast-off, clear, delivered, emancipated,
   extricated, floating, free, freed, liberated, loose, on parole,
   redeemed, released, rescued, rickety, shaky, started, unanchored,
   unbound, uncensored, unchained, undone, unfastened, unfettered,
   unfixed, ungagged, unmoored, unmuzzled, unshackled, unstuck

Untied >> U Words
Untied, definition of term: Untied
untied_pag1.html