The Collaborative International Dictionary of English v.0.48:

Iterative \It"er*a*tive\, a. [L. iterativus: cf. F.
   it['e]ratif.]
   Repeating. --Cotgrave. -- It"er*a*tive*ly, adv.
   [1913 Webster]

WordNet (r) 3.0 (2006):

iterative
    adj 1: marked by iteration [syn: iterative, reiterative]
    n 1: the aspect of the verb that expresses the repetition of an
         action [syn: iterative, iterative aspect]

Moby Thesaurus II by Grady Ward, 1.0:

19 Moby Thesaurus words for "iterative":
   battological, duplicative, echoic, echoing, imitative, parrotlike,
   recapitulative, redundant, reduplicative, reechoing, reiterant,
   reiterative, repeating, repetitional, repetitionary, repetitious,
   repetitive, tautological, tautologous