- except under the circumstances that: I'll be there at nine, unless the train is late.
- except; but; save: Nothing will come of it, unless disaster.
Origin of unless
Examples from the Web for unless
Unless there is a court decision that changes our law, we are OK.Jeb Bush’s Unseen Anti-Gay Marriage Emails
January 9, 2015
In some ways I never got out of that unless realizing… well, that kind of seals it off.The Story Behind Lee Marvin’s Liberty Valance Smile
January 3, 2015
Unless Cuba sends them back, you might consider following the now lifted embargo with your own personal boycott.Cuba Protects America’s Most Wanted
December 18, 2014
Unless you were in China on November 11, you might have missed it.Alibaba’s Dark Side: Censoring Customers
November 18, 2014
Unless there is “a clear national security or law enforcement need,” the bias would lean toward disclosure.How Obama Endangered Us All With Stuxnet
November 13, 2014
"Unless it should be his gracious pleasure to dispense with obedience," replied Artaphernes.Philothea
Lydia Maria Child
But unless he did something a hundred lives perhaps might be lost.
Unless you do as I bid you, I will keep you in irons for the rest of the voyage!
"That'll be enough for us, unless you are very hungry," said Robert.
Unless we are fortunate enough to find some, retreat is inevitable.Explorations in Australia
- (subordinating) except under the circumstances that; except on the condition thatthey'll sell it unless he hears otherwise
- rare except
Word Origin and History for unless
mid-15c., earlier onlesse, from on lesse (than) "on a less condition (than)," the first syllable originally on, but the negative connotation and the lack of stress changed it to un-.