IPA: /ˈspuːkiɪst/
KK: /ˈspukiɪst/
The most frightening or eerie; causing fear or unease.
That haunted house is the spookiest place I've ever been to.
Comparative: spookier
Superlative: spookiest
Spookiest → It is formed from "spook" (from Dutch "spook", meaning ghost or specter) and the suffix "-iest" (meaning most). The word "spookiest" refers to something that is most ghostly or frightening.
Think of the Dutch word 'spook' for ghost — that helps you remember that 'spookiest' means the most ghostly or frightening.
No commonly confused words.