As adjectives the difference between relieved and calm
is that
relieved is experiencing or exhibiting relief while
calm is (of a person) peaceful, quiet, especially free from anger and anxiety.
As verbs the difference between relieved and calm
is that
relieved is (
relieve) while
calm is to make calm.
As a noun calm is
(in a person) the state of being calm; peacefulness; absence of worry, anger, fear or other strong negative emotion.