| unalterability | (n) the quality of not being alterable, Ant. alterability |
| unalterable | (adj) not capable of being changed or altered, Syn. inalterable, Ant. alterable, Example: unalterable resolve; an unalterable ground rule |
| unalterable | (adj) of a sentence; that cannot be changed, Example: an unalterable death sentence |
| unalterably | (adv) in an unalterable and unchangeable manner, Syn. immutably, unchangeably, unassailably, Example: his views were unchangeably fixed |