威い勢せいよくMeaningsAdverb1. with energy; vigorously; cheerfully; assertively; lustilyOther spellings威い勢せい良よくUsage share unknownKanji used威terrifying authority勢vigorKanji in other spellings良goodExamples1さあ、駆かけつけ三さん杯ばい、威い勢せいよくぱっといきましょう。Anybody who shows up late has to chug!