"vastly" in German vastly gewaltig Detailed translations for "vastly" vastly vastly(also: mountainously, toweringly, stupendously, tremendously) gewaltig{adverb} Well, it appears she vastly underestimated you. Source: opensubtitles.org Corpus by OPUS Request review Offenbar hat sie Euch gewaltig unterschätzt. I gave him a strategy that vastly improved his odds. Source: opensubtitles.org Corpus by OPUS Request review Ich gab ihm eine Strategie, die seine Chancen gewaltig erhöhte. English synonyms for "vastly" vastly {r} immensely