unsounded vs silent

unsounded and silent both are adjectives.

Word	Noun	Adjective	Verb	Adverb
unsounded	No	Yes	No	No
silent	No	Yes	No	No

As adjectives, unsounded and silent are synonyms defined as:

unsounded (adjective)	silent (adjective)
situated at or extending to great depth; too deep to have been sounded or plumbed	implied by or inferred from actions or statements
not made to sound	unable to speak because of hereditary deafness
	having a frequency below or above the range of human audibility
	marked by absence of sound
	failing to speak or communicate etc when expected to
	not made to sound
	expressed without speech