neighbouring vs conterminous

neighbouring and conterminous both are adjectives.

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

As adjectives, neighbouring and conterminous are synonyms defined as:

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

Other synonyms of neighbouring include adjacent, contiguous, neighboring.

neighbouring (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