Catenaries refer to a particular form of a curve that resembles a hanging chain or cable. Antonyms for catenaries could mean any set of curves that do not resemble a hanging chain or cable. Some possible antonyms for catenaries include circles, ellipses, hyperbolas, parabolas, and straight lines. These curves have different properties and characteristics and are used in various fields such as mathematics, engineering, physics, and architecture. Unlike catenaries, which have a unique shape, antonyms for catenaries have distinct mathematical equations and properties that make them useful in different applications. Understanding the properties of these curves and their antonyms can help in solving complex problems in various fields.