What is the Latin word for inconsistent?

The usual Latin words for “inconsistent” are īnsociābilis, aliēnus, incōnstāns; also inaequālis. The right choice depends on the sense; see the distinctions below.

English → Latin

“inconsistent” in Latin

īnsociābilisunable to combine with others, unsociable aliēnusOf that which belongs to another person, place, or object—of another, alien, foreign; unfriendly, inimical, hostile, sus incōnstānschangeable; inconstant; inconsistent; fickle; capricious inaequālisunequal; unlike, dissimilar; uneven, unsteady

Riddle & Arnold A Copious and Critical English–Latin Lexicon, 1864

inconsistent

Not agreeing together, insociabilis (not easily uniting together; Plin.). (The words are found in this connection and order.) (res) diversae et insociabiles: alienus (foreign to, inconsistent with, ab aliqua re, aliqua re, alicui rei, alicujus rei): ☞ incongruus, late. To be inconsistent, pugnare inter se (of contradictory assertions, etc.); repugnare alicui rei; alienum esse ab aliqua re (e.g. a alicujus dignitate). To bear uthg without doing anything inconsistent with the character of a wise man, aliquid ita ferre, ut nihil discedas a dignitate sapientis [Vid: “to be INCOMPATIBLE with”]. ☞ “To be inconsistent with,” etc., may often be translated by genitive with esse; e.g., measures inconsistent with the mildness of our times, quae non sunt hujus mansuetudinis.

With reference to character, inconstans: non constans (not agreeing with itself; of things and persons): parum sibi conveniens, sibi repugnans (being at variance with itself): inaequalis († Hor., irregular in his actions). (The words are found in this connection and order.) stultus et inaequalis (Sen., Vit. Beat., 12): impar sibi (Hor., Sat., 1, 3, 9). Inconsistent behavior, inconstantia. To be inconsistent; Vid: “to act INCONSISTENTLY. “

Quick answer

What is the Latin word for inconsistent?: The usual Latin words for “inconsistent” are īnsociābilis, aliēnus, incōnstāns; also inaequālis. The right choice depends on the sense; see the distinctions below.

Entry from J. E. Riddle & T. K. Arnold, A Copious and Critical English–Latin Lexicon (rev. C. Anthon, New York: Harper, 1864), digitised by Fergus J. P. Walsh, CC BY-SA 4.0; Latin markup adapted by latindictionary.co.