The antonyms for the word "unhandiest" include convenient, handy, accessible, manageable, organized, and practical. When you use words like handy and convenient, it means that things are easy to reach, and they're available whenever you need them. If something is manageable, it means it's easy to handle or deal with. On the other hand, if something is unhandy, it means it's not easy to handle, and it's not useful. Therefore, to avoid unhandy situations, you should always strive to be organized, practical, and make things easily accessible. With time, the unhandiest situations will become a thing of the past, and you'll enjoy a more convenient lifestyle.