The term 'be livid' is an expression used to describe someone who is extremely angry. The crossword solutions for this term are 'SEETHE' (6 letters), 'FUME' (4 letters) and 'seered' (6 letters). SEETHE is a verb meaning to be in a state of great anger or rage, while FUME is another verb meaning to be filled with or express great anger. Seered is an adjective meaning to be burned or scorched, which can be used to describe the feeling of intense anger.