Her face wore a settled and unaltering expression of something missed yet never to that day for one moment forgotten.
It was practised for thousands of years and opposed its unaltering form to the multiplicity of legends and local beliefs.
"Other Fellow," was all he said, when she leaned towards him with her unaltering love of glance and smile.
The unaltering constituent of the soul corresponds to character, while intellectual qualities are variable.
The tree waves softly all night in the unaltering lamplight, and the moonlight is killed upon its leaves.
In all but the unaltering fire of friendship I could see change creeping on.
Let your altar be to the 'Unknown God,' if you like—for who can give an unaltering likeness to the Power above us?
late 14c., "to change (something)," from Old French alterer "change, alter," from Medieval Latin alterare "to change," from Latin alter "the other (of the two)," from PIE *al- "beyond" (see alias (adv.)) + comparative suffix -ter (cf. other). Intransitive sense "to become otherwise" first recorded 1580s. Related: Altered; altering.