The word "un-available" refers to something that is not accessible or not able to be used. Its antonyms refer to actions or objects that are within reach or easily accessible. Words such as "available", "accessible", and "attainable" are antonyms for "un-available". These words often imply that something is open for use or acquisition, and they suggest that an option can be explored or taken advantage of. Other antonyms for "un-available" include "approachable", "reachable", and "obtainable". These words all suggest that something is within our grasp or easily accessible, making them a desirable option for anyone seeking accessibility and convenience.