'Suicidal' definitions:

Definition of 'suicidal'

From: WordNet
adjective
Dangerous to yourself or your interests; "suicidal impulses"; "a suicidal corporate takeover strategy"; "a kamikaze pilot" [syn: self-destructive, suicidal]

Definition of 'Suicidal'

From: GCIDE
  • Suicidal \Su"i*ci`dal\, a. Partaking of, or of the nature of, the crime or suicide. -- {Su"i*ci`dal*ly}, adv. [1913 Webster]