The word "unhanding" can be used as a verb, meaning to release or let go of something or someone. There are a few synonyms that can be used interchangeably with "unhanding" depending on the context, such as relinquish, surrender, release, or let go. These words all share the same notion of letting go or giving up control. "Relinquish" can be used in a formal or legal context, whereas "surrender" often implies a defeat or loss of control. "Release" and "let go" both suggest a less formal act of physically or emotionally freeing oneself or someone else from a situation or object.