Exacerbate is a verb meaning to make something worse or more intense. The crossword solutions for this term include INFURIATE (9 letters), EXASPERATE (10 letters), ENRAGE (6 letters), COMPLICATE (10 letters), HEIGHTEN (8 letters), MADDEN (6 letters), ENVENOM (7 letters), INCREASE (8 letters), EMBITTER (8 letters), PROVOKE (7 letters), IRRITATE (8 letters), VEX (3 letters), WORSEN (6 letters), INFLAME (7 letters), AGGRAVATE (9 letters), and IRE (3 letters). All of these words are synonyms for exacerbate, and they all describe the action of making something worse or more intense.