- simple past tense and past participle of unbind.
- not bound, as a book.
- free; not attached, as by a chemical bond: unbound electrons.
verb (used with object), un·bound, un·bind·ing.
- to release from bonds or restraint, as a prisoner; free.
- to unfasten or loose, as a bond or tie.
- the past tense and past participle of unbind
- (of a book) not bound within a cover
- not restrained or tied down by bonds
- (of a morpheme) able to form a word by itself; free
verb -binds, -binding or -bound (tr)
- to set free from restraining bonds or chains; release
- to unfasten or make loose (a bond, tie, etc)
v.Old English unbindan, “to free from binding,” from un- (2) + bind (v.). Cf. German entbinden, Dutch ontbinden. Literal and figurative senses both present in Old English. Suæ huæt ðu unbindes ofer eorðu bið unbunden in heofnum. [Lindisfarne Gospels, Matt. xvi:19] Unbound is from Old English unbunden, in literal sense. Figurative sense first attested late 14c.; of books from 1540s.