undemonstrative vs restrained

undemonstrative and restrained both are adjectives.

Word	Noun	Adjective	Verb	Adverb
undemonstrative	No	Yes	No	No
restrained	No	Yes	No	No

undemonstrative (adjective)	restrained (adjective)
not given to open expression of emotion	under restraint
	prudent
	marked by avoidance of extravagance or extremes
	cool and formal in manner
	not showy or obtrusive