Synonyms for Yeasty (same or very similar meaning)
WordNet sense 1 (of or resembling or containing yeast):
yeastlikeWordNet sense 2 (marked by spirited enjoyment):
zestful, zesty, barmyWordNet sense 3 (displaying animation, vigor, or liveliness):
spiritedWordNet sense 4 (having the ability or power to create):
creative, originativeFrom the ODE community, based on WordNetadd/edit