← BackshareGuessunclamp/ʌnˈklæmp/verbTo release or remove a clamp or fastening from something.She carefully unclamped the wooden piece from the workbench.The mechanic had to unclamp the battery cables to check the terminals.Please unclamp the hose from the faucet before you leave.SynonymsreleaseunfastenloosenAntonymsclamptighten