The antonyms for the word "more unhumorous" are numerous, and they all convey a sense of levity, humor, or amusement. One antonym for "unhumorous" is "funny," which suggests that something is comical or amusing. Another antonym is "hilarious," which implies that something is so amusing that it causes raucous laughter. "Amusing" is another antonym that suggests something is causing enjoyment or a sense of light-heartedness. "Jocular" and "witty" are antonyms that imply intelligence and cleverness, especially in the realm of humor. Other antonyms include "lighthearted," "playful," and "entertaining", which imply a fun or enjoyable experience.