involution vs intricacy

involution and intricacy both are nouns.

Word	Noun	Adjective	Verb	Adverb
involution	Yes	No	No	No
intricacy	Yes	No	No	No

As nouns, involution and intricacy are synonyms defined as:

Other synonyms of involution include elaborateness, elaboration.

involution (noun)	intricacy (noun)
the action of enfolding something	marked by elaborately complex detail
the process of raising a quantity to some assigned power
the act of sharing in the activities of a group
marked by elaborately complex detail
a long and intricate and complicated grammatical construction
reduction in size of an organ or part (as in the return of the uterus to normal size after childbirth)