The crossword solutions for the term OPPOSITE OF 25-ACROSS are CLAD (4 letters) and LOWLANDS (8 letters). CLAD is an adjective that means 'dressed or covered, especially in fine or decorative clothing'. LOWLANDS is a noun that refers to an area of land that is lower than the surrounding area. Therefore, the opposite of 25-ACROSS would be an area of land that is higher than the surrounding area and not dressed or covered in fine or decorative clothing.