flower child vs hipster

flower child and hipster both are nouns.

Word	Noun	Adjective	Verb	Adverb
flower child	Yes	No	No	No
hipster	Yes	No	No	No

As nouns, flower child and hipster are synonyms defined as:

flower child and hipster: someone who rejects the established culture; advocates extreme liberalism in politics and lifestyle

Other synonyms of flower child include hippie, hippy.

flower child (noun)	hipster (noun)
someone who rejects the established culture; advocates extreme liberalism in politics and lifestyle	someone who rejects the established culture; advocates extreme liberalism in politics and lifestyle