Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • adjective Considering or desiring to commit suicide.
  • adjective Relating to suicide.
  • adjective Dangerous to oneself or to one's interests; self-destructive or ruinous.

from The Century Dictionary.

  • Partaking or being of the nature of the crime of suicide; suggestive of suicide; leading to suicide: as, suicidal mania; hence, figuratively, destructive of one's aims or interests; self-destructive: as, a suicidal business policy.

from the GNU version of the Collaborative International Dictionary of English.

  • adjective Partaking of, or of the nature of, the crime or suicide.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • adjective Pertaining to suicide.
  • adjective of a person Likely to commit, or to attempt to commit, suicide.
  • adjective informal Extremely reckless.
  • noun someone suicidal, someone likely to kill themselves

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adjective dangerous to yourself or your interests

Etymologies

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Examples

  • The word "ideation" also shows up in the phrase "suicidal ideation," meaning "thinking, often obsessively, about harming yourself."

    Week in Words Erin McKean 2011

  • Psychotropic medication changes, polypharmacy, and the risk of early readmission in suicidal adolescent inpatients.

    Dana Ullman: Homeopathy: A Healthier Way to Treat Depression? Dana Ullman 2010

  • Psychotropic medication changes, polypharmacy, and the risk of early readmission in suicidal adolescent inpatients.

    Homeopathy: A Healthier Way to Treat Depression? Dana Ullman 2010

  • After that comes what I call the suicidal phase, where they CAN and WILL try anything and you are constantly on guard against their innocent joy in, for example, electrical cable or toilet brushes.

    Tenerife, lost count of the days nathreee 2010

  • Pichot MH, Auzepy P, Richard C. Acute drug poisoning in suicidal elderly patients 70 years old and over. 92 cases in a medical ICU.

    Flumanazil 2010

  • Everyone is buying into Hillary's psychopathy but Obama IS going to be the nominee otherwise the Democrats are just plain suicidal (or extremely stupid).

    Polls: Clinton, Obama tied in Indiana 2008

  • This striking decrease in suicidal risk appears to flow from a newfound self-confidence in the vast majority of Katrina survivors, the researchers found.

    USATODAY.com - Study: Storm survivors find will to live 2006

  • The survey showed no spike in suicidal tendencies in New Orleans but did find that half the city's survivors were having nightmares about their experiences, compared with a quarter of all survivors.

    USATODAY.com - Study: Storm survivors find will to live 2006

  • You don't have to kill yourself to be engaging in suicidal behavior.

    Commander in Grief 2005

  • You don't have to kill yourself to be engaging in suicidal behavior.

    Commander in Grief 2005

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