tongueless vs unspoken

tongueless and unspoken both are adjectives.

Word	Noun	Adjective	Verb	Adverb
tongueless	No	Yes	No	No
unspoken	No	Yes	No	No

As adjectives, tongueless and unspoken are synonyms defined as:

Other synonyms of tongueless include mute, silent, wordless.

tongueless (adjective)	unspoken (adjective)
lacking a tongue	not made explicit
expressed without speech	expressed without speech