| imp. & p. | 1. |
| Adj. | 1. | unbound - not secured within a cover; "an unbound book" Antonyms: bound - secured with a cover or binding; often used as a combining form; "bound volumes"; "leather-bound volumes" |
| 2. | unbound - not restrained or tied down by bonds Antonyms: bound - confined by bonds; "bound and gagged hostages" | |
| 3. | unbound - not held in chemical or physical combination |