"Unharnessing" is a word that means to release or remove the harness or restraint from something. There are several synonyms for this word, including "unleashing," "untethering," "unbridling," and "letting loose." Each of these words describes the act of freeing something from its restraint or control. "Unleashing" may suggest a more aggressive or forceful release, while "untethering" or "unbridling" may imply a gentler removal of restraint. Ultimately, each synonym has a slightly different connotation and can be used to create distinct meanings and tones in writing or speech.