The word "relaxednesses" is itself a rare and slightly awkward term that refers to a state of being calm, comfortable and at ease. However, in the realm of antonyms, there are several words that can be used to describe the opposite of this state. Restlessness, agitation, tension, unease, and anxiety are some of the words that can be used instead of relaxednesses. These words refer to a state of discomfort, nervousness, and restlessness. While relaxednesses evoke a sense of peace and tranquility, their opposite terms depict a sense of unease and restlessness that is commonly associated with stress or anxiety. In conclusion, antonyms play an important role in describing the contrasts between different states, and in this case, the differences between relaxation and unease.