discontent

Etymology

dis- + content

noun

1. (uncountable) Dissatisfaction.
   Another source of discontent with the Phase I stock has been obviated by relocation of the interior heating elements and the introduction of thermostatic control; this has eradicated the searing blasts of hot air passengers used to feel about their calves …. 1961 February, “Talking of Trains: Phase II units in service”, in Trains Illustrated, page 69
2. (uncountable) A longing for better times or circumstances.
   Spring was moving in the air above and in the earth below and around him, penetrating even his dark and lowly little house with its spirit of divine discontent and longing. 1908, Kenneth Grahame, The Wind in the Willows, New York: Charles Scribner's Sons, page 1
3. (countable) A discontented person; a malcontent.

verb

1. To deprive of contentment; to make uneasy; to dissatisfy.

adj

1. Not content; discontented; dissatisfied.