Jejunities, which refers to things that are boring or lacking in substance, can be contrasted with a variety of antonyms that denote liveliness, energy, and robustness. Some examples of these contrasting words include vivacity, dynamism, verve, gusto, and vitality. Each of these terms suggests a sense of vital energy, liveliness, and excitement that is lacking in jejune or insipid things. Other antonyms for jejunities might include words that suggest depth, complexity, or richness, such as profundity, intricacy, or richness. Whatever the opposite of jejunities might be, it is clear that it implies a sense of energy, life, and meaningfulness that is absent in whatever is described as jejune.