acquired taste vs penchant

acquired taste and penchant both are nouns.

Word	Noun	Adjective	Verb	Adverb
acquired taste	Yes	No	No	No
penchant	Yes	No	No	No

As nouns, penchant is a hypernym of acquired taste; that is, penchant is a word with a broader meaning than acquired taste:

acquired taste: a preference that is only acquired after considerable experience
penchant: a strong liking

Other hypernyms of acquired taste include predilection, preference, taste.

acquired taste (noun)	penchant (noun)
a preference that is only acquired after considerable experience	a strong liking