Wiktionary
n. Something potentially very dangerous.
Usage examples of "disaster waiting to happen".
Obtained for Body of Secrets, the account clearly shows that Lemnitzer's Joint Staff viewed the CIA plan as a disaster waiting to happen.
A commanding general who took such boasts seriously was a disaster waiting to happen, as the unhappy Guildenstern could attest.
When Church summed up the luckless incidents, he felt as if he were standing watch over a disaster waiting to happen.
But she'll still be an over-age, under-maintained disaster waiting to happen.
Critics had been insisting for years that the outdated and run-down facility, housing many tons of toxic chemicals, was a disaster waiting to happen.
That's the next disaster waiting to happen and nobody wants to listen to them.
Another gift for Natalie York, maybe, but a disaster waiting to happen for the MEM.