non-institutional

adjective

1. of, relating to, or established by institution.
2. of or relating to organized establishments, foundations, societies, or the like, or to the buildings devoted to their work.
3. of the nature of an institution.
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. pertaining to institutes or principles, especially of jurisprudence.

adjective

1. of, relating to, or characteristic of institutions
2. dull, routine, and uniforminstitutional meals
3. relating to principles or institutes, esp of law

adj.1610s, from institution + -al (1).