The word "un-close" means to move away from something or someone or to end a relationship. It can also refer to something that is not intimate or familiar. There are several synonyms for this word which include estrange, distance, alienate, detach, disengage, break away, sever, reject, and isolate. Each of these words signifies a different level of separation or disconnection but all convey the idea of moving away from something or someone. It is important to remember that "un-close" is not always negative and can be a natural part of life as people grow and change.