Synonyms and related words :
admonitory, advisory, authoritative, autodidactic, binding, canonical, cautionary, coeducational, commanding, communicative, compelling, consultative, consultatory, cultural, decretal, decretive, decretory, dictated, dictating, didactic, directive, disciplinary, edifying, educating, educational, educative, enlightening, exhortative, exhortatory, expostulative, expostulatory, formulary, hard and fast, helpful, homiletic, hortative, hortatory, illuminating, imperative, informational, informative, informing, initiatory, introductory, jussive, lecturing, mandating, mandatory, monitorial, monitory, moralistic, moralizing, obligating, official, peremptory, preaching, preachy, preceptive, prescribed, prescript, prescriptive, propaedeutic, recommendatory, regulation, remonstrant, remonstrative, remonstratory, revealing, rubric, self-teaching, sententious, standard, statutory, teaching, tuitionary, warning