disgruntlement

disgruntled +‎ -ment

• IPA^(key): /dɪsˈɡɹʌntəlmɪnt/

disgruntlement (countable and uncountable, plural disgruntlements)

1. The state of being disgruntled, usually displayed in a stereotypical form such as frowning and annoyance; the acts of sulky dissatisfaction.
   • 2008, Katherine L. Herbig, Changes in Espionage by Americans: 1947-2007, page 35:

     The third most common motive for Americans to commit espionage is disgruntlement, usually caused by the person's relationships or treatment in the workplace, and the associated desire to take revenge.