unbind
     v : untie or unfasten; "unbind the feet of this poor woman"
         [ant: {bind}]
     [also: {unbound}]
Source: WordNet® 2.0

unbound
     adj 1: not secured within a cover; "an unbound book" [ant: {bound}]
     2: not restrained or tied down by bonds [ant: {bound}]
     3: not held in chemical or physical combination
Source: WordNet® 2.0

unbound
     See {unbind}
Source: WordNet® 2.0