Mundaneness refers to the state or quality of being ordinary, commonplace, or lacking excitement. Its antonyms are words that exemplify the opposite of mundaneness, i.e., words that denote originality, individuality, dynamism, and novelty. Antonyms of mundaneness include exuberance, ingenuity, innovation, creativity, novelty, zinginess, effervescence, exhilaration, and vibrancy. These words depict a sense of life and spontaneity, where mundaneness is absent. Thus, whenever mundaneness seems to be overwhelming, and you need to add some sparkle and excitement to life, consider conjuring their antonyms in your consciousness, and you'll witness an upsurge in your spirit and energy levels.