|1.||the past tense and past participle of unbind|
|2.||(of a book) not bound within a cover|
|3.||not restrained or tied down by bonds|
|4.||(of a morpheme) able to form a word by itself; free|
"Suæ huæt ðu unbindes ofer eorðu bið unbunden in heofnum." [Lindisfarne Gospels, Matt. XVI.19]Unbound is from O.E. unbunden, in literal sense. Figurative sense first attested late 14c.; of books from 1540s.