Lethal catatonias refer to a medical condition characterized by severe muscular rigidity, unresponsiveness, and resistance to movement. The antonyms for this condition, on the other hand, would revolve around concepts of mobility, responsiveness, and flexibility. Some possible antonyms for lethal catatonias could include "agile," "flexible," "responsive," "spry," "nimble," and "active." These words suggest a state of movement, energy, and adaptability, which stands in direct contrast to the immobility and rigidity associated with lethal catatonias. By exploring the antonyms for this condition, we can gain a deeper understanding of what it means to be healthy, active, and fully engaged with the world around us.