A person who is always dissatisfied
A
Heretic
B
Felon
C
Malcontent
D
Surrogate
Correct Answer: Malcontent
One word substitute is Malcontent.Heretic: a person believing in or practising religious heresy.
Felon: a person who has committed a felony.
Malcontent: a person who is dissatisfied and rebellious.
Surrogate: a substitute, especially a person deputizing for another in a specific role or office.