An antilogy is a literary device that uses two contrasting ideas to create a rhetorical effect. It is often used to emphasize a point or to illustrate a concept. The term 'antilogy' comes from the Greek words 'ANTI' meaning 'OPPOSITE' and 'LOGOS' meaning 'WORD'. The crossword solution for antilogy, 'UNLIKENESS', refers to the idea of two things being different from each other. This could be in terms of physical characteristics, beliefs, values, or any other kind of contrast. UNLIKENESS is an important concept in antilogy as it helps to create the desired effect.