A late Middle English coinage, first known instance c. 1386, from un- â€˜notâ€™ + *wieldy, from OE. wielde â€˜active, vigorousâ€™.
- obsolete lacking strength; weak
- obsolete ungraceful in movement
- difficult to carry, manage or operate because of its size, weight or shape or complexity
- badly managed or operated
R:Online Etymology Dictionary