nonsentence

English

Etymology

From non- +‎ sentence.

Noun

nonsentence (plural nonsentences)

1. (grammar) An utterance that is not a sentence.
   • 1979, Steven Pinker, “Formal models of language learning”, in Language, Cognition, and Human Nature:

     Those strings in the language are called sentences; the strings not in the language are called nonsentences.