borrowed time

American  

noun

1. an uncertain, usually limited period of time extending beyond or postponing the occurrence of something inevitable.

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Etymology

Origin of borrowed time

First recorded in 1895–1900

Example Sentences

Logic would say that Nancy is already on borrowed time, but logic doesn't seem to be pervasive at the club at the moment.

From BBC

Still, just a month ago contrarians believed that the gold rally was “living on borrowed time” and that they would “get the last laugh.”

From MarketWatch

Is Amorim on borrowed time as Man Utd boss?

From BBC

So with that in mind, if Spurs have the strength in their initial convictions then Postecoglou may still be on borrowed time.

From BBC

It has said that it believes Syria is living "on borrowed time".

From BBC