timorousness

from WordNet (r) 3.0 (2006)

timorousness
    n 1: fear of the unknown or unfamiliar or fear of making
         decisions [syn: {timidity}, {timidness}, {timorousness}]
    2: fearfulness in venturing into new and unknown places or
       activities [syn: {timidity}, {timorousness}] [ant:
       {boldness}, {daring}, {hardihood}, {hardiness}]

from The Collaborative International Dictionary of English v.0.48

Timorous \Tim"or*ous\, a. [LL. timorosus, from L. timor fear;
   akin to timere to fear. See {Timid}.]
   1. Fearful of danger; timid; deficient in courage. --Shak.
      [1913 Webster]

   2. Indicating, or caused by, fear; as, timorous doubts. "The
      timorous apostasy of chuchmen." --Milman.
      [1913 Webster] -- {Tim"or*ous*ly}, adv. --
      {Tim"or*ous*ness}, n.
      [1913 Webster]