soundest in English dictionary soundest Meanings and definitions of "soundest" Superlative form of sound. (archaic) Second-person singular present simple form of sound adjective superlative form of [i]sound[/i]: most sound verb ( archaic) second-person singular simple present form of [i]sound[/i] more Soundest Sample sentences with "soundest" Declension Stem Try again Available translations Arabic Cornish Czech German Authors