simplicity vs restraint

simplicity and restraint both are nouns.

Word	Noun	Adjective	Verb	Adverb
simplicity	Yes	No	No	No
restraint	Yes	No	No	No

As nouns, simplicity and restraint are synonyms defined as:

Other synonyms of simplicity include chasteness, simpleness.

simplicity (noun)	restraint (noun)
freedom from difficulty or hardship or effort	the act of controlling by restraining someone or something
lack of ornamentation	a device that retards something's motion
the quality of being simple or uncompounded	discipline in personal and social activities
absence of affectation or pretense	lack of ornamentation
a lack of penetration or subtlety	a rule or condition that limits freedom
	the state of being physically constrained