plumbable vs fathomable

plumbable and fathomable both are adjectives.

Word	Noun	Adjective	Verb	Adverb
plumbable	No	Yes	No	No
fathomable	No	Yes	No	No

As adjectives, plumbable and fathomable are synonyms defined as:

plumbable and fathomable: (of depth) capable of being sounded or measured for depth

Other synonyms of plumbable include soundable.

plumbable (adjective)	fathomable (adjective)
(of depth) capable of being sounded or measured for depth	(of depth) capable of being sounded or measured for depth
	(of meaning) capable of being penetrated or comprehended