societal vs social

societal is not a noun while social is a noun.

Word	Noun	Adjective	Verb	Adverb
societal	No	Yes	No	No
social	Yes	Yes	No	No

As adjectives, societal and social are synonyms defined as:

societal (noun)	social (noun)
	a party of people assembled to promote sociability and communal activity

societal (adjective)	social (adjective)
relating to human society and its members	living together or enjoying life in communities or organized groups
	relating to human society and its members
	relating to or belonging to or characteristic of high society
	marked by friendly companionship with others
	tending to move or live together in groups or colonies of the same kind
	composed of sociable people or formed for the purpose of sociability