off chance

See at chance(def 17).

Words nearby 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" |Moriel Rothman |June 20, 2012 |DAILY BEAST
He let his mind dwell on it until the off-chance began to look like an absolute certainty.

The Divine Fire |May Sinclair
Indeed, the sergeant ventured to suggest that Tristram should be branded on the off-chance of its turning out for his good.

The Blue Pavilions |Sir Arthur Thomas Quiller-Couch
But there had always been the off-chance that one of the specialists could come up with a new approach.

Sense of Obligation |Henry Maxwell Dempsey (AKA Harry Harrison)

And if Pratt escaped there was always the off-chance that Adam might be laid by the heels.

The Pagan's Cup |Fergus Hume
The owners naturally do not keep such ships waiting on the off-chance of Government employment.

History of the War in South Africa 1899-1902 v. 1 (of 4) |Sir Frederick Maurice.

off chance

a slight possibility

on the off chance with the hope on the off chance of getting the job