“+ adjective
Etymology: un- (I) + sound + -able
: not capable of being sounded or fathomed
a silence unsoundable — Thomas Carlyle
unsoundable depths
“+ adjective
Etymology: un- (I) + sound + -able
: not capable of being sounded or fathomed
a silence unsoundable — Thomas Carlyle
unsoundable depths
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012