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

The team's focus is on being golden again on race day, not on potential rivals from races like the Haskell or Jim Dandy. — Danny Brewer, Forbes.com, 9 July 2026

The original Moana, Auliʻi Cravalho, is also back but not on screen. — Brian Truitt, USA Today, 9 July 2026

What if the four matches of the World Cup quarterfinals took place not on the pitch, but in the beer garden? — Jay R. Brooks, Mercury News, 9 July 2026

The majority of owners are not on Oahu full-time, so the property is never at capacity, which is likely why the property seems a lot more peaceful than a typical hotel with 500-plus keys. — Condé Nast, Condé Nast Traveler, 8 July 2026

Rhymes for not on

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