two-sided vs reversible

two-sided is not a noun while reversible is a noun.

Word	Noun	Adjective	Verb	Adverb
two-sided	No	Yes	No	No
reversible	Yes	Yes	No	No

As adjectives, two-sided and reversible are synonyms defined as:

two-sided and reversible: capable of being reversed or used with either side out

two-sided (noun)	reversible (noun)
	a garment (especially a coat) that can be worn inside out (with either side of the cloth showing)

two-sided (adjective)	reversible (adjective)
capable of being reversed or used with either side out	capable of reversing or being reversed
having two sides or parts	capable of being reversed or used with either side out
	capable of assuming or producing either of two states
	capable of being reversed