not on

phrase

British, informal

1

: not acceptable or proper

Cheating old ladies out of their savings just isn't on.

2

: not possible

I'm afraid that scheme's just not on.

Examples of not on in a Sentence

Recent Examples on the Web

Almost half of international travelers are guys, but the percentage of their spend in travel beauty is not on a par versus women’s. — Jennifer Weil, Footwear News, 6 Oct. 2026

As a result, Lively wasn’t invited to Swift’s wedding, and the two are reportedly not on speaking terms. — Allison Degrushe, StyleCaster, 5 Oct. 2026

In a recent interview, the Democratic candidate declined to define a woman because her focus is not on those issues. — David Zimmermann, The Washington Examiner, 5 Oct. 2026

Raekwon Davis, Solomon Kindley, Jason Strowbridge, Curtis Weaver, Blake Ferguson and Malcolm Perry are either out of the league or not on 53-man rosters. — Barry Jackson, Miami Herald, 3 Oct. 2026

Rhymes for not on

• anton
• argon
• axon
• baronne
• baryon
• baton
• boron
• buisson
• bygone
• capon
• cardon
• chiffon