dis·con·tent 
(dĭs′kən-tĕnt)
(dĭs′kən-tĕnt)n.
1.
a. Absence of contentment; dissatisfaction.
b. A restless longing for better circumstances.
2. One who is discontented.
adj.
Discontented.
tr.v. dis·con·tent·ed, dis·con·tent·ing, dis·con·tents
To make discontented.
dis′con·tentment n.