two-sided vs bilateral

two-sided and bilateral both are adjectives.

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

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

two-sided (adjective)	bilateral (adjective)
capable of being reversed or used with either side out	having two sides or parts
having two sides or parts	affecting or undertaken by two parties
	having identical parts on each side of an axis