As a noun spookfest
is a frightening event.
As an adjective spookiest is
superlative of spooky.
spookiest
English
Adjective
(head)
(spooky)
spooky
English
Adjective
(er)
eerie, or suggestive of ghosts or the supernatural
unpredictably excitable; skittish (used especially of horses)
Derived terms
* spookily