The Collaborative International Dictionary of English v.0.48:

Denotative \De*not"a*tive\, a.
   Having power to denote; designating or marking off.
   [1913 Webster]

         Proper names are pre["e]minently denotative; telling us
         that such as object has such a term to denote it, but
         telling us nothing as to any single attribute.
                                                  --Latham.
   [1913 Webster]

WordNet (r) 3.0 (2006):

denotative
    adj 1: having the power of explicitly denoting or designating or
           naming [syn: denotative, denotive] [ant:
           connotative]
    2: in accordance with fact or the primary meaning of a term
       [syn: denotative, explicit]

Moby Thesaurus II by Grady Ward, 1.0:

61 Moby Thesaurus words for "denotative":
   allegorical, associational, connotational, connotative, definable,
   demonstrative, denominative, denotational, designative, diagnostic,
   emblematic, evidential, exhibitive, expressive, extended,
   extensional, figural, figurative, full of meaning, full of point,
   full of substance, identifying, ideographic, idiosyncratic,
   implicative, indicating, indicative, indicatory, individual,
   intelligible, intensional, interpretable, meaning, meaningful,
   meaty, metaphorical, naming, pathognomonic, peculiar, pithy,
   pointed, pregnant, readable, referential, representative, semantic,
   semiotic, sententious, signalizing, significant, significative,
   signifying, substantial, suggestive, symbolic, symbolistic,
   symbological, symptomatic, symptomatologic, transferred, typical