invariable
UK /ɪnˈvɛə.ɹi.ə.bl̩/ · US /ɪnˈvɛɹ.i.ə.bl̩/ adjective, noun
Forms invariables
- adjective Not variable; unalterable; uniform; always having the same value.
- adjective (mathematics) Constant.
- adjective (by extension, grammar, of a word, or a grammatical class) That cannot undergo inflection, conjugation or declension. “The French adjective marron ‘brown’ is invariable: it does not take the usual s in the plural.”
- noun Something that does not vary; a constant.
Synonyms
Antonyms
Etymology
From in- + variable. Piecewise doublet of unvariable.
Webster’s 1913
- adjective Not given to variation or change; unalterable; unchangeable; always uniform.
- noun An invariable quantity; a constant.
Etymology [Pref. in- not + variable: cf. F. invariable.]
Sources: Wiktionary · WordNet 3.0 · Webster’s 1913 — from the Wiktionary entry “invariable”, CC BY-SA 4.0. Details