someone's life depends on (something)
idiom
—used to say that something is very important or essential
His life depends on how he answers this question.
He was studying as if his life depended on it.
—often used in negative statementsI wouldn't eat that food if my life depended on it.
Dictionary Entries Near someone's life depends on (something)
someone's life depends on (something)
Cite this Entry
“Someone's life depends on (something).” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/someone%27s%20life%20depends%20on%20%28something%29. Accessed 24 Apr. 2024.
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Merriam-Webster unabridged
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