Catty-corner is a peculiar term meaning diagonal or oblique. Its antonyms are straight, perpendicular, and parallel, which are words that describe position and direction. Something is perpendicular when it is at a right angle, whereas parallel implies that two lines are equal in distance at every point. On the other hand, straight means not curved, bent, or crooked. These words serve as opposites for catty-corner, which is often used in American English. Knowing the antonyms of catty-corner helps to clarify the meaning of statements and avoid confusion. Therefore, it is essential to understand its opposites in different contexts.