off-topic

From off- + topic.

• Audio (General Australian):

  (file)

off-topic (comparative more off-topic, superlative most off-topic)

1. Not related to the matter under discussion.
   • 1992, Dial in, page 9:

     When someone asks an off-topic question […] they are usually quickly told to knock it off. You can't ask a question about modems in an echo devoted to local-area networks.

• offtopic, off topic

• on-topic

• → Russian: оффто́п (offtóp)