unmapped vs uncharted

unmapped and uncharted both are adjectives.

Word	Noun	Adjective	Verb	Adverb
unmapped	No	Yes	No	No
uncharted	No	Yes	No	No

As adjectives, unmapped and uncharted are synonyms defined as:

unmapped and uncharted: (of unknown regions) not yet surveyed or investigated

Other synonyms of unmapped include chartless.

unmapped (adjective)	uncharted (adjective)
(of unknown regions) not yet surveyed or investigated	(of unknown regions) not yet surveyed or investigated