staid vs decorous

staid and decorous both are adjectives.

Word	Noun	Adjective	Verb	Adverb
staid	No	Yes	No	No
decorous	No	Yes	No	No

staid (adjective)	decorous (adjective)
characterized by dignity and propriety	characterized by propriety and dignity and good taste in manners and conduct
	according with custom or propriety