awkward in movement or action; without skill or grace: He is very clumsy and is always breaking things.
2.
awkwardly done or made; unwieldy; ill-contrived: He made a clumsy, embarrassed apology.
Origin: 1590–1600;clums benumbed with cold (now obsolete) + -y1; akin to Middle Englishclumsen to be stiff with cold, dialectal Swedishklumsig benumbed, awkward, klums numbskull, Old Norseklumsa lockjaw. See clam2
[C16 (in obsolete sense: benumbed with cold; hence, awkward): perhaps from C13 dialect clumse to benumb, probably from Scandinavian; compare Swedish dialect klumsig numb]