Institutionally rhymes with:
constitutionally, unconstitutionally, constitutionally, unconstitutionally, additionally, conditionally, congressionally, constitutionally, conventionally, educationally, exceptionally, fractionally, functionally, generationally, intentionally, internationally, irrationally, nationally, nutritionally, operationally, professionally, proportionally, rationally, rotationally, traditionally, unconditionally, unconstitutionally, unintentionally