suicidal vs volatile

suicidal

adj
  • Likely to commit, or to attempt to commit, suicide. 

  • Extremely reckless. 

  • Highly likely to certain to result in the deaths of the participants; dangerous or reckless to such a degree as to be tantamount to suicide for those taking part. 

  • Pertaining to suicide. 

noun
  • Someone suicidal; someone likely to kill themselves. 

volatile

adj
  • Potentially violent. 

  • Explosive. 

  • Temporary or ephemeral. 

  • Variable or erratic. 

  • Quick to become angry or violent. 

  • Fickle. 

  • Whose content is lost when the computer is powered down 

  • Having its associated memory immediately updated with any changes in value. 

  • Evaporating or vaporizing readily under normal conditions. 

noun
  • A variable that is volatile, i.e. has its associated memory immediately updated with any change in value. 

  • A chemical or compound that changes into a gas easily. 

How often have the words suicidal and volatile occurred in a corpus of books? (source: Google Ngram Viewer )