Halloween adjectives that start with the letter A include:
No, it is a proper noun. It can, however, function as an adjunct with other nouns: Halloween costume, Hallowen candy.
The Halloween event starts the week before and after Halloween.
yes
Igloo
Abstractalarmingalien
hobo
A adjective that starts a sentence
Halloween
An adjective for cupid is cute.
Hulk Hogan is a Halloween costume. Hillbilly is a Halloween costume. Heath Bar is a candy bar given to children.
haunted house
It starts on the 30th midnight