Back
Back adjective - Being at or in the part of something opposite the front part.
Irrelevant and back are semantically related. In some cases you can use "Irrelevant" instead an adjective "Back".
Irrelevant
Irrelevant adjective - Not having anything to do with the matter at hand.
Back and irrelevant are semantically related. Sometimes you can use "Back" instead an adjective "Irrelevant".
Mutual synonyms
Both words in one sentence
- However, the bladers who did manages to come back were Demoted to Extra because of the new two-man-team system, making all other team members irrelevant substitutes who never got their turn.
- Tony: Hmmm... That's actually a very good point... [an irrelevant amount of time later...] Greg: Holy crap... Can you believe how crazy things got back there?
Source: Unspoken Plan Guarantee - Certainly, their insistence that everything you throw at them is "irrelevant" fits this trope to a T - and they have the ability to back it up.
Source: Machine Monotone
Cite this Source
Irrelevant and Back. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/back/irrelevant
Back & Irrelevant. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/back/irrelevant>.
Irrelevant or Back. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/back/irrelevant.
Google Ngram Viewer shows how "back" and "irrelevant" have occurred on timeline