Trenchant

acerbic acid acidulous acute astringent biting caustic clear clear-cut crisp critical crushing cutting distinct driving dynamic effective effectual emphatic energetic explicit forceful forcible graphic hurtful impressive incisive intense keen mordant penetrating piquant pointed potent powerful pungent razor-sharp salient salty sardonic sententious severe sharp significant strong tart to the point unequivocal unsparing vigorous weighty well-defined