REALLY MAD is an expression used to describe a person who is extremely angry. The crossword solutions for this term include IRATE (5 letters), ANGERED (7 letters), IRED (4 letters), BOILING (7 letters), ENRAGED (7 letters), LIVID (5 letters), STEAMING (8 letters), TISSUE (6 letters), BURNEDUP (8 letters), READYTKILL (10 letters), and FITTOBETIED (11 letters). All of these words are synonyms for REALLY MAD and can be used to describe someone who is in a state of extreme anger.