Instead of being fiery and aggressive, one could be calm and peaceful. Instead of being confrontational and confrontational, one could be collaborative and cooperative. Instead of being incendiary and inflammatory, one could be conciliatory and diplomatic. Instead of being militant and radical, one could be moderate and compromising. Opposite of having an intense, passionate, and zealous approach, one could demonstrate a relaxed, hesitant, and mellow demeanor. Overall, antonyms for "more fireeating" are related to being gentle, restrained, and reserved in one's behavior and attitude.