The Collaborative International Dictionary of English v.0.48:

Shrewish \Shrew"ish\, a.
   having the qualities of a shrew; having a scolding
   disposition; froward; peevish.
   [1913 Webster]

         My wife is shrewish when I keep not hours. --Shak.
   [1913 Webster] -- Shrew"ish*ly, adv. -- Shrew"ish*ness,
   n.
   [1913 Webster]

WordNet (r) 3.0 (2006):

shrewish
    adj 1: continually complaining or faultfinding; "a shrewish
           wife"; "nagging parents" [syn: shrewish, nagging]

Moby Thesaurus II by Grady Ward, 1.0:

57 Moby Thesaurus words for "shrewish":
   aggressive, bellicose, belligerent, beyond control, bickering,
   breachy, catty, combative, contumacious, defiant, disputatious,
   divisive, eristic, factional, factious, fractious, fretful,
   incorrigible, indocile, indomitable, insuppressible, intractable,
   irascible, irrepressible, irritable, litigious, nagging, naggy,
   obstreperous, out of hand, partisan, peevish, pettish, petulant,
   polarizing, polemic, pugnacious, quarrelsome, querulous,
   recalcitrant, refractory, resentful, resistant, resisting, restive,
   unbiddable, uncontrollable, ungovernable, unmalleable,
   unmanageable, unmoldable, unruly, unsubmissive, vixenish, vixenly,
   wild, wrangling