em·bit·ter \ə̇mˈbid.]ə(r), em-, -it]\transitive verb alsoim·bit·ter\ə̇m-\ (-ed/-ing/-s) Etymology:en- (I)or in- (II) + bitter (adjective) 1.: to make bitter or more bitter < hops serve to embitter beer > 2.: to excite bitter feelings or animosities in Synonyms:see exacerbate