As an adjective spooktacular is
(slang) spooky and spectacular; wonderfully frightening.
Not English Wikidiffcom has no English definition. It may be misspelled.
(slang) Spooky and spectacular; wonderfully frightening.
, date=April 29
, author=Nathan Rabin
, title=TV: Review: THE SIMPSONS (CLASSIC): “Treehouse of Horror III” (season 4, episode 5; originally aired 10/29/1992)
, passage=In time The Simpsons would, indeed, resort to spoofing such decidedly non-spooktacular
fare like E.T and Mr. And Mrs. Smith (both in “Treehouse Of Horror XVIII”) but in 1992 the field was wide-open and the show could cherry-pick the most iconic and beloved fright fare of all time.}}