non sequitur

noun

non se·​qui·​tur ˌnän-ˈse-kwə-tər 

 also  -ˌtu̇r

1

: an inference (see inference sense 1) that does not follow from the premises (see premise entry 1 sense 1)

specifically : a fallacy resulting from a simple conversion of a universal affirmative (see affirmative entry 1 sense 3) proposition or from the transposition of a condition and its consequent (see consequent entry 1 sense 1)

2

: a statement (such as a response) that does not follow logically from or is not clearly related to anything previously said

We were talking about the new restaurant when she threw in some non sequitur about her dog.

Did you know?

Non sequitur comes directly from Latin, in which language it means “it does not follow.” Although the Latin non sequitur can constitute a phrase or even a complete sentence, in English non sequitur is a noun, and thus it follows that the plural of non sequitur is non sequiturs. Borrowed into English in the 16th century by logicians, non sequitur initially referred to a conclusion that did not follow the statements preceding it. The meaning has now broadened to include statements that are seemingly unrelated to the topic at hand, or that seem to come out of the blue. So if you ever forget the definition of non sequitur, just remember: a penny saved is a penny earned.

Examples of non sequitur in a Sentence

We were talking about the new restaurant when she threw in some non sequitur about her dog.

Recent Examples on the Web

My one non sequitur of the day has to do with Kingdom of the Planet of the Apes. —Brian Davids, The Hollywood Reporter, 24 Mar. 2025

His late-night posts on X, mass emails to federal employees, and non sequiturs uttered on television have prompted even more questions about his drug use. —Shayla Love, The Atlantic, 5 Mar. 2025

During a recent set at a New York comedy club, Geoffrey Asmus — an impish stand-up with a penchant for dark non sequitur — performed a joke about the Israel-Gaza war. —Hershal Pandya, Vulture, 20 Mar. 2024

Photo: Paramount/Everett Collection Year: 1980 Run Time: 88 minutes Directors: Jim Abrahams, David Zucker, and Jerry Zucker Stuffing hundreds of punch lines, visual gags, and non sequiturs into less than 90 minutes, Airplane! boasts arguably the highest laughs-per-minute ratio in cinema history. —Alison Willmore, Vulture, 8 Jan. 2025

Word History

Etymology

Latin, it does not follow

First Known Use

1540, in the meaning defined at sense 1

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