There are different antonyms for the word "zealousnesses," which refers to the state of being enthusiastic, passionate, or fervent about something. Some of the antonyms for this word include apathy, indifference, disinterest, lethargy, laziness, and passivity. These words depict a lack of energy or enthusiasm for a given task or purpose. They portray a feeling of boredom or uninterest, which is the opposite of the zealousnesses concept, where one is enthusiastic and devoted to a goal or cause. All in all, antonyms for zealousnesses represent a lack of motivation or inspiration towards achieving a particular objective or taking a specific action.