The term 'Beautiful Guy' can be summed up by the crossword solution 'ADONIS', which is a 6-letter word. ADONIS is a figure from Greek mythology, known for his beauty and youth. He was the son of the goddess Aphrodite and the mortal king Cinyras. He was killed in a hunting accident and was later transformed into an immortal god. ADONIS has become a symbol of beauty and desire, and is often used to describe a handsome man.