The term 'most repulsive' can be described by three crossword solutions: ickiest (7 letters), vilest (6 letters), and rankest (7 letters). All three words are adjectives that describe something as being extremely unpleasant or distasteful. Ickiest is derived from the word 'ICKY, ' which is an informal term for something that is disgusting or revolting. Vilest is derived from the word 'VILE, ' which means something that is morally reprehensible or contemptible. Rankest is derived from the word 'RANK, ' which means something that is foul-smelling or offensive. All three words are used to describe something that is extremely unpleasant or distasteful.