adjective

1. of or relating to organized establishments, foundations, societies, or the like, or to the buildings they occupy.
   The association offers an institutional membership discount to members of affiliated groups.

2. of the nature of an established organization or institution.
   institutional bureaucracy.

3. relating to or noting a policy, practice, or belief system that has been established as normative or customary throughout an institution or society, particularly as perpetuated in institutions of a public character, as schools, courts, or legislative bodies: institutional sexism in academia;
   institutional racism in the criminal justice system;
   institutional sexism in academia;
   institutional prejudice against members of the gay community.

4. characterized by the blandness, drabness, uniformity, and lack of individualized attention attributed to large institutions that serve many people.
   institutional food.

5. (of advertising) having as the primary object the establishment of goodwill and a favorable reputation rather than the immediate sale of the product.

6. relating to established principles or institutes, especially of jurisprudence.