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off-topic

American  
[awf-top-ik, of-] / ˈɔfˈtɒp ɪk, ˈɒf- /

adjective

  1. not on the main topic; irrelevant to the discussion: OT

    to delete off-topic comments on a blog.

Etymology

Origin of off-topic

First recorded in 1970–75

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.