Definition from Wiktionary, the free dictionary
intergalactic (not comparable)
- Occurring between galaxies.
2012 May 24, Nathan Rabin, “Film: Reviews: Men In Black 3”, in The Onion AV Club:
- Men In Black 3 finagles its way out of this predicament by literally resetting the clock with a time-travel premise that makes Will Smith both a contemporary intergalactic cop in the late 1960s and a stranger to Josh Brolin, who plays the younger version of Smith’s stone-faced future partner, Tommy Lee Jones.
occurring between galaxies