|süə|sīd ə l adjective
Etymology: suicide (I) + -al
1. : of the nature of, relating to, or tending toward suicide : self-destructive
medical examiner said that death was suicidal — Springfield (Massachusetts) Daily News
the suicidal implications of thermonuclear attack — Denis Healey
mountain travel at that season was suicidal — R.A.Billington
2. : characterized by an impulse to commit suicide
suicidal insanity
I have had influenza and … feel suicidal — G.B.Shaw
3. : destructive of one's own interests
knew it would be suicidal to voice his true opinions in such a group