miserable vs unhappy

miserable and unhappy both are adjectives.

Word	Noun	Adjective	Verb	Adverb
miserable	No	Yes	No	No
unhappy	No	Yes	No	No

miserable (adjective)	unhappy (adjective)
of the most contemptible kind	experiencing or marked by or causing sadness or sorrow or discontent
of very poor quality or condition	generalized feeling of distress
contemptibly small in amount	marked by or producing unhappiness
characterized by physical misery	causing discomfort
deserving or inciting pity
very unhappy; full of misery