Wackinesses is a colloquial term used to describe something or someone that is eccentric, ridiculous, or absurd. The antonyms of wackinesses, on the other hand, are more composed, dignified, and balanced. Some examples of antonyms of wackinesses include rationality, lucidity, soundness, soberness, and seriousness. These words signify the absence of any kind of craziness or foolishness, which is the exact opposite of what wackinesses represent. Therefore, if you want to counterbalance someone's wackiness, you can use some of these antonyms to give them a more level-headed perspective.