- See at chance(def 17).
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for off-chance
In other words, a Palestinian from Susya could, hypothetically, apply for a permit on the 5% off-chance that it will be accepted.Why Susya is "Illegal"
June 20, 2012
I suppose we may as well go for a prowl to-night, on the off-chance of finding him.The Motor Pirate
George Sidney Paternoster
Oddly enough, it seems as if it might—there's just the off-chance—it might affect the issue.'The Convert
Corder stood in the door for a moment, on the off-chance that his friend might be joking.The Cock-House at Fellsgarth
Talbot Baines Reed
It was an off-chance, and he well knew it; but there was nothing else to be done.Adventures in Many Lands
He kept it on the off-chance of being able to make something out of it.For Fortune and Glory
- a slight possibility
- on the off chance with the hopeon the off chance of getting the job
Word Origin and History for off-chance
Online Etymology Dictionary, © 2010 Douglas Harper