Source : Webster's Revised Unabridged Dictionary (1913)

Timidity \Ti*mid"i*ty\, n. [L. timiditas: cf. F. timidit['e].]
   The quality or state of being timid; timorousness; timidness.

Source : WordNet®

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