malcontent
/mælˈkɒntɛnt/Definitions
1. noun
a person who is dissatisfied or discontent, especially with their circumstances or situation.
“The malcontents in the office were unhappy with the new management structure.”
2. verb
to express or show dissatisfaction or discontent, typically in a subtle or passive way.
“Some employees malcontented about the changes, but they didn’t speak up.”