Source : Webster's Revised Unabridged Dictionary (1913)

Cloddish \Clod"dish\, a.
   Resembling clods; gross; low; stupid; boorish. --Hawthorne.
   -- {Clod"dish*ness}, n.

Source : WordNet®

cloddish
     adj : heavy and dull and stupid [syn: {doltish}]