exterrestrial (?.)

• alien
• exterritorial
• extragalactic
• extralateral
• extraliminal
• extramundane
• extramural
• extrapolar
• extraprovincial
• extrasolar
• extraterrene
• extraterrestrial
• extraterritorial
• extratribal
• foreign
• otherworldly
• outlandish
• space
• transcendental
• transmundane