Irrelevant
Irrelevant adjective - Not having anything to do with the matter at hand.
Usage example: irrelevant questions that merely disrupted the classroom lesson
Tangent and irrelevant are semantically related. In some cases you can use "Tangent" instead an adjective "Irrelevant".
Tangent
Tangent noun - A departure from the subject under consideration.
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Synonyms for Tangent
Irrelevant and tangent are semantically related. Sometimes you can use "Irrelevant" instead an adjective "Tangent".
Nearby Word: tangential
Mutual synonyms
Both words in one sentence
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This Lightning Made of Owls strip has Ambrose on a line that is tangent to a cubic function, while talking to a calculus class about something irrelevant.
Source: Visual Pun -
Early on in one of Dara Ó Briain's live shows, he interrupts one of his routines to go off on a short and seemingly irrelevant tangent about how much he hates those hands-free bathroom soap dispensers and how pointless they are.
Source: Brick Joke -
Although she's an irrelevant tangent to the overall story and Dresden thinks nothing more of it, she's used as an example in the ending's You Are Better Than You Think You Are speech on how seemingly minor actions can have a major impact.
Source: Diving Save
Cite this Source
Tangent and Irrelevant. (2016). Retrieved 2026, August 03, from https://thesaurus.plus/related/irrelevant/tangent
Irrelevant & Tangent. N.p., 2016. Web. 03 Aug. 2026. <https://thesaurus.plus/related/irrelevant/tangent>.
Tangent or Irrelevant. 2016. Accessed August 03, 2026. https://thesaurus.plus/related/irrelevant/tangent.
Google Ngram Viewer shows how "irrelevant" and "tangent" have occurred on timeline