beastish in English dictionary beastish Meanings and definitions of "beastish" Like a beast; brutal. adjective Like a beast; brutal; beastly. more Grammar and declension of beastish beastish ( comparative more beastish, superlative most beastish) beastish (comparative more beastish, superlative most beastish) more Sample sentences with "beastish" Declension Stem Try again Authors