whether or not

Idioms  

1. Also, whether or no. Regardless of whether, no matter if. For example, Whether or not it rains, we're going to walk to the theater, or She plans to sing at the wedding, whether or no anyone asks her to. The negative element in these constructions may also follow the subject and verb, as in I have to attend, whether I want to or not. [c. 1600]

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Example Sentences

If Chinese factories use humanoid robots to lower costs, the effect will show up in exported goods whether or not the robots themselves are sold abroad.

From MarketWatch • May 27, 2026

“If it’s weird and attention-grabbing and will get shared, it almost is irrelevant whether or not the food is edible or delicious,” he said.

From Los Angeles Times • May 22, 2026

They don’t have to limit their review to whether or not the individual deserves a payout.

From Slate • May 22, 2026

The forecast does not include predictions on whether or not storms might make landfall.

From Barron's • May 21, 2026

Hmm, maybe I should conduct an experiment on whether or not sunscreen makes our sweat evaporate slower.

From "Sir Fig Newton and the Science of Persistence" by Sonja Thomas