neighboring vs conterminous

neighboring and conterminous both are adjectives.

Word	Noun	Adjective	Verb	Adverb
neighboring	No	Yes	No	No
conterminous	No	Yes	No	No

As adjectives, neighboring and conterminous are synonyms defined as:

neighboring and conterminous: having a common boundary or edge; abutting; touching

Other synonyms of neighboring include adjacent, contiguous, neighbouring.

neighboring (adjective)	conterminous (adjective)
having a common boundary or edge; abutting; touching	being of equal extent or scope or duration
	connecting without a break; within a common boundary
	having a common boundary or edge; abutting; touching