(uncountable) The tendency of a person to commit suicide. / (countable) A fatality that is an instance of suicide.

Pertaining to suicide. / (of a person) Likely to commit, or to attempt to commit, suicide.

Someone suicidal; someone likely to kill themselves.

plural of suicidal

The quality of being suicidal.

In a suicidal fashion. / In terms of or by means of suicide.

plural of suicidality

suicidality

(nonstandard) One who commits suicide. / (medicine, social work) One who is planning to commit suicide.

Third-person singular simple present indicative form of suicide