Extramural

(a.) Outside of the walls, as of a fortified or walled city.

Thesaurus Entries

academic, alien, classroom, collegiate, exterrestrial, exterritorial, extragalactic, extralateral, extraliminal, extramundane, extrapolar, extraprovincial, extrasolar, extraterrestrial, extraterritorial, extratribal, foreign, interscholastic, intramural, outlandish, preschool, scholastic, school, university