The antonyms for the word "more warhorse" could be "less experienced," "untrained," or "novice." As warhorses are trained, battle-ready horses, these antonyms signify a lack of preparation or experience. Other antonyms might include "peaceful," "docile," or "domesticated." These words signify a lack of aggression or violence, which is the opposite of what a warhorse embodies. Additionally, words such as "retiring," "timid," or "shy" could be antonyms, indicating a lack of boldness or courage required for a trained battle animal. Overall, the antonyms for "more warhorse" convey a range of ideas, from lack of experience to peacefulness or timidity.