profound vs unplumbed

profound and unplumbed both are adjectives.

Word	Noun	Adjective	Verb	Adverb
profound	No	Yes	No	No
unplumbed	No	Yes	No	No

As adjectives, profound and unplumbed are synonyms defined as:

profound and unplumbed: situated at or extending to great depth; too deep to have been sounded or plumbed

Other synonyms of profound include unfathomed, unsounded.

profound (adjective)	unplumbed (adjective)
showing intellectual penetration or emotional depth	situated at or extending to great depth; too deep to have been sounded or plumbed
situated at or extending to great depth; too deep to have been sounded or plumbed
(of sleep) deep and complete
of the greatest intensity; complete
far-reaching and thoroughgoing in effect especially on the nature of something
coming from deep within one