Definitions:
having a sharp, pungent taste or smell; not sweet

feeling or showing anger, hurt, or resentment because of bad experiences or a sense of unjust treatment

painful or unpleasant to accept or contemplate

(of wind or weather) intensely cold

beer that is strongly flavoured with hops and has a bitter taste, brewed by top fermentation

alcohol flavoured with bitter plant extracts, used as an additive in cocktails or as a medicinal substance to promote appetite or digestion