The Collaborative International Dictionary of English v.0.48:

Hesitant \Hes"i*tant\, a. [L. haesitans, p. pr. of haesitare:
   cf. F. h['e]sitant. See Hesitate.]
   1. Not prompt in deciding or acting; hesitating.
      [1913 Webster]

   2. Unready in speech. --Baxter.
      [1913 Webster]

WordNet (r) 3.0 (2006):

hesitant
    adj 1: lacking decisiveness of character; unable to act or
           decide quickly or firmly [syn: hesitant, hesitating]