[ soo-uh-sahyd-l ]
/ ˌsu əˈsaɪd l /


pertaining to, involving, or suggesting suicide.
tending or leading to suicide.
foolishly or rashly dangerous: He drives at a suicidal speed.

Origin of suicidal

First recorded in 1770–80; suicide + -al1

Related forms

su·i·cid·al·ly, adverbpseu·do·su·i·ci·dal, adjectiveun·su·i·cid·al, adjectiveun·su·i·cid·al·ly, adverb Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for suicidal

British Dictionary definitions for suicidal


/ (ˌsuːɪˈsaɪdəl, ˌsjuː-) /


involving, indicating, or tending towards suicide
liable to result in suicidea suicidal attempt
liable to destroy one's own interests or prospects; dangerously rash

Derived Forms

suicidally, adverb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medicine definitions for suicidal


[ sōō′ĭ-sīdl ]


Of or relating to suicide.
Likely to attempt suicide.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.