solecism

A nonstandard usage or grammatical construction.

A violation of etiquette.

An impropriety, mistake, or incongruity.

A gross deviation from the settled usages of grammar; a gross grammatical error, such as “I done it” for “I did it.”

Loosely, any small blunder in speech.

Any unfitness, absurdity, or impropriety, as in behavior; a violation of the conventional rules of society.

An incongruity; an inconsistency; that which is incongruous with the nature of things or with its surroundings; an unnatural phenomenon or product; a prodigy; a monster.

Synonyms Barbarism, etc. See impropriety.

An impropriety or incongruity of language in the combination of words or parts of a sentence; esp., deviation from the idiom of a language or from the rules of syntax.

Any inconsistency, unfitness, absurdity, or impropriety, as in deeds or manners.