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

"For me, making an accurate measurement is a way of bringing order to the universe, whether or not the number agrees with the expected value," he added.

From Science Daily • May 18, 2026

And whether or not the two gloves made the ultimate difference, his success in professional golf stems from his ability to control golf’s most unruly club.

From The Wall Street Journal • May 18, 2026

“It’s all about the timing and whether or not the Strait of Hormuz is going to be reopened and how quickly,” he says.

From MarketWatch • May 13, 2026

Of course consumers may still feel somewhat hesitant—particularly on the question External link of whether or not AI actually has their best interests at heart.

From Barron's • May 12, 2026

My goods assembled and stowed in a brown bag, I debated whether or not to go directly up the hill to the cave or take the long route.

From "Z for Zachariah" by Robert C. O’Brien