Source : Webster's Revised Unabridged Dictionary (1913)

Crabbed \Crab"bed\ (kr?b"b?d), a. [See {Crab},n.]
   1. Characterized by or manifesting, sourness, peevishness, or
      moroseness; harsh; cross; cynical; -- applied to feelings,
      disposition, or manners.

            Crabbed age and youth can not live together. --Shak.

   2. Characterized by harshness or roughness; unpleasant; --
      applied to things; as, a crabbed taste.

   3. Obscure; difficult; perplexing; trying; as, a crabbed
      author. ``Crabbed eloquence.'' --Chaucer.

            How charming is divine philosophy! Not harsh and
            crabbed, as dull fools suppose.       --Milton.

   4. Cramped; irregular; as, crabbed handwriting. --
      {Crab"bed*ly}, adv. -- {Crab"bed*ness}, n.

Source : WordNet®

crabbedness
     n : a disposition to be ill tempered [syn: {crabbiness}, {crossness}]