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suicidal
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As an adjective, suicidal means pertaining to suicide. As a noun, it means someone suicidal.
Meanings of suicidal
6 meaningsadjective
Pertaining to suicide.
“He is an authority on the precursors of suicidal behavior.”
of a personLikely to commit, or to attempt to commit, suicide.
“After losing his job, his wife, and his leg in a single week, he became suicidal.”
Highly likely to certain to result in the deaths of the participants; dangerous or reckless to such a degree as to be tantamount to suicide for those taking part.
informalhyperbolicExtremely reckless.
“His driving habits are utterly suicidal.”
Dangerous to yourself or your interests
“suicidal impulses”
“a suicidal corporate takeover strategy”
Similar: self-destructive
noun
Someone suicidal; someone likely to kill themselves.
Meanings from Wiktionary (CC BY-SA 4.0) and Open English WordNet (CC BY 4.0).