What is another word for fatal?

Need synonyms for fatal? Here's a list of words from our thesaurus that you can use instead.

Adjective
Causing death
“It contains an alkaloid toxin which can be fatal to horses and other livestock.”
Adjective
Leading to failure or disaster
“We say it is fatal to the defendants' case that they cannot prove those accusations to be true.”
Adjective
Critical, very important
“Putting off that fatal moment.”
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