1
acquiescence
1
aphasiac(silent, mum, muffled, voiceless)
1
aphasic(silent, mum, muffled, voiceless)
1
aphonic(silent, mum, muffled, voiceless)
1
cavernous
1
deep
1
ethereal
1
fundamental
1
gaping
1
hard
1
hushed
1
immeasurable
1
implied
1
mousy
1
noiseless
1
plunging
1
quiescent
1
subaudible
1
tongueless(silent, mum, muffled, voiceless)
1
understood
11 years ago|1.1k views|share |citing 
APASmart Define. (2015). unsounded thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/unsounded/thesaurus/synonyms
ChicagoSmart Define. 2015. "unsounded thesaurus" https://smartdefine.org/unsounded/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, unsounded thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/unsounded/thesaurus/synonyms>.
MLASmart Define. "unsounded thesaurus" 14 April 2015. Web. 21 September 2026. <https://smartdefine.org/unsounded/thesaurus/synonyms>