Adjective: klutzy (klutzier,klutziest)
klút-zeeUsage: N. Amer, informal- Lacking grace in movement or posture
"a klutzy lad with long ungainly legs";
- gawky, clumsy, clunky [informal], ungainly, unwieldy
Derived forms: klutzier, klutziest
See also: awkward