Source : Webster's Revised Unabridged Dictionary (1913)

Curmudgeonly \Cur*mudg"eon*ly\, a.
   Like a curmudgeon; niggardly; churlish; as, a curmudgeonly
   fellow.

Source : WordNet®

curmudgeonly
     adj : brusque and surly and forbidding; "crusty remarks"; "a
           crusty old man"; "his curmudgeonly temper"; "gruff
           manner"; "a gruff reply" [syn: {crusty}, {gruff}, {ill-humored},
            {ill-humoured}]