Institutive is a word used to describe something that pertains to an institute or institution. Synonyms for this word might include organizational, established, conventional, or institutionalized. Other possible synonyms for institutive might include institutional, institutionalized, or procedural. These words all suggest a sense of structure, routine, and established rules or norms that guide behavior within a particular context. Other closely related words might include customary, traditional, or customary. Whether you're writing an academic paper or simply trying to expand your vocabulary, exploring different synonyms for institutive can help you express your thoughts and ideas with greater precision and clarity.