Definition of time bomb
1 : a bomb so made as to explode at a predetermined time
2 : something with a potentially dangerous or detrimental delayed reaction
Examples of time bomb in a sentence
He's a time bomb getting ready to explode.
If we don't do something about the pollution problem, we'll be sitting on a ticking time bomb.
First Known Use of time bomb
TIME BOMB Defined for English Language Learners
Definition of time bomb for English Language Learners
: a bomb that is set to explode at a particular moment
: a person or situation that will probably become dangerous or harmful in the future
Seen and Heard
What made you want to look up time bomb? Please tell us where you read or heard it (including the quote, if possible).