The term "most warhorse" implies a fierce, battle-ready and courageous warrior animal, typically a horse. As for antonyms, those would be words that describe opposites of this nature. Some antonyms for "warhorse" may include timid, cowardly, pacifist, indifferent, or docile. These words connote the opposite of a fierce and strong animal, one who is reticent, complacent, or unwilling to fight. Therefore, when we talk about antonyms for "most warhorse," we are essentially talking about words that describe the opposite of an energetic, aggressive, and warlike creature. These antonyms help to highlight the varying degrees of temperament and character seen among animals, including horses.