The term PROS' OPPOSITES refers to two words that are antonyms of each other. The crossword solutions for this term are CONS (4 letters) and TYROS (5 letters). CONS is a shortened form of the word 'CONSERVATIVES' and is used to describe people who hold traditional values and beliefs. TYROS, on the other hand, is a shortened form of the word 'tyroes' and is used to describe people who are inexperienced or new to a particular field. Therefore, CONS and TYROS are opposites of each other and can be used to describe different types of people.