preceptive

from The Collaborative International Dictionary of English v.0.48

Preceptive \Pre*cep"tive\, a. [L. praeceptivus.]
   Containing or giving precepts; of the nature of precepts;
   didactic; as, the preceptive parts of the Scriptures.
   [1913 Webster]

         The lesson given us here is preceptive to us.
                                                  --L'Estrange.
   [1913 Webster]

from Moby Thesaurus II by Grady Ward, 1.0

51 Moby Thesaurus words for "preceptive":
      authoritative, autodidactic, binding, canonical, coeducational,
      commanding, compelling, cultural, decretal, decretive, decretory,
      dictated, dictating, didactic, directive, disciplinary, edifying,
      educating, educational, educative, enlightening, exhortatory,
      formulary, hard and fast, homiletic, hortatory, illuminating,
      imperative, informative, initiatory, instructive, introductory,
      jussive, lecturing, mandating, mandatory, obligating, official,
      peremptory, preaching, prescribed, prescript, prescriptive,
      propaedeutic, regulation, rubric, self-teaching, standard,
      statutory, teaching, tuitionary