The word "more mortuary" is not commonly used in everyday language. However, if we were to consider antonyms for the word "mortuary," which refers to a funeral home or morgue, we could use phrases such as "less somber," "not funereal," or "not deathly." These antonyms suggest lightness, liveliness, and vitality, which are the polar opposite of what a mortuary represents. Other antonyms could include phrases such as "joyful," "celebratory," or "festive." In essence, anything that signifies life, happiness, and celebration would be the antithesis of a mortuary.