Defies gravity is an idiom that refers to something that seems impossible or goes against the laws of physics. Some antonyms for this expression include obeying gravity, succumbing to gravity, or being grounded. These terms describe objects or individuals that stay grounded, follow the laws of gravity, and don't appear to defy it. Another antonym could be falls to the ground, which would be the opposite of defying gravity. The concept of defying gravity is often associated with strength, power, and innovation. However, obeying gravity can also demonstrate equilibrium, stability, and harmony. Both concepts have their advantages, and it is up to individuals to decide which one they prefer.