coupled vs conjugated

coupled and conjugated both are adjectives.

Word	Noun	Adjective	Verb	Adverb
coupled	No	Yes	No	No
conjugated	No	Yes	No	No

As adjectives, coupled and conjugated are synonyms defined as:

Other synonyms of coupled include conjugate.

coupled (adjective)	conjugated (adjective)
connected by a link, as railway cars or trailer trucks	joined together especially in a pair or pairs
joined together especially in a pair or pairs	of an organic compound; containing two or more double bonds each separated from the other by a single bond
	formed by the union of two compounds