A deep and echoing voice is an example of something that would be described as resonant.
Resonant comes from the Latin re, meaning again, and sonare, meaning to sound——or literally to sound again or echo.
Two things that matter to me.
This site allows you to find in one place, all the synonyms and antonyms of the English language.
A resonant speech moves you by bringing to mind all that is good in the world: family, friends, laughter.
We narrowed it down to the pieces which we found most influential, which still resonate in people's minds.