uncast verb 4adjective 1forms 2 verb4 •To remove (an actor) from a role that was previously assigned to them. •To reverse the effects of (a magical spell).The while it is the fairies’ hour The fairies’ tricks are full of power. But when the hour is overpast By wisdom we their spells uncast. — 1920 •To detach (a rope, line, etc.).[…] the vessel, uncasting the hawser which had detained it, instantly left the ice […] — 1846 •To bring back to a standing position (a horse or other large animal that is lying down with its legs under it). adjective1 •Not having been cast (in various senses).[…] if in casting your flie, the line fall into the water before it, the flie were better uncast, because it frights the fish […] — 1662 formsuncasting · uncasts