an accident waiting to happen

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Also found in: Acronyms.

an accident waiting to happen

A person, thing, or situation that appears to be imminently dangerous or troublesome. Often but not always used somewhat humorously. Don't leave that ladder in the middle of the yard, it's just an accident waiting to happen! My toddler is starting to walk now, and she is just an accident waiting to happen.
See also: accident, happen, waiting

an accident waiting to happen

COMMON
1. If you describe a situation or activity as an accident waiting to happen, you mean that they are likely to be a cause of danger in the future. A lot of the city's buildings are accidents waiting to happen. The sudden explosion of a real bullet on stage during the play was an accident waiting to happen.
2. If you describe a person as an accident waiting to happen, you mean that they are likely to cause trouble or have bad problems. He was getting a reputation for being wild — an accident waiting to happen.
See also: accident, happen, waiting