American Dictionary of the English Language

CLUMSY, adjective s as z. [from clump, lump.]

1. Properly, short and thick, like a clump or lump. Hence,

2. Moving heavily, slowly or awkwardly; as clumsy fingers.

3. Awkward; ungainly; unhandy; artless; without readiness, dexterity or grace; as a clumsy man; a clumsy fellow.

4. Ill-made; badly constructed; as a clumsy garment; clumsy verse.