The crossword solution for the term 'OPPOSITES ATTRACT IS ONE' is 'ADAGE', which is a five-letter word. An ADAGE is an old saying or proverb that expresses a truth based on common sense or experience. The phrase 'opposites attract' is an ADAGE that suggests that two people who are very different from each other can be attracted to one another. This phrase is often used to describe relationships between people of different backgrounds, personalities, and interests.