The antonyms for the word "un-fixedness" are stability, consistency, and permanence. These words indicate a state of being steady, unchanging, or fixed in position or nature. Stability suggests a solid foundation that is not easily disturbed, while consistency implies a reliable and predictable pattern or behavior. Permanence, on the other hand, suggests a state of lastingness and endurance that cannot be easily altered or changed. In contrast to the fluidity of "un-fixedness," these antonyms suggest a sense of security, order, and reliability. By understanding the range of meanings associated with the antonyms of "un-fixedness," we can deepen our appreciation of the complexity of this concept.