i Register
In some senses, scary is marked as informal, US, colloquial. Watch for register when choosing this word.
ADJ.
best, big, fat, favorite, little, little, novel, still
That big scary dog at the end of our street always barks when we walk past.
VERB + SCARY
'number-withheld', calls, hear, looks, meet, read, sounds, steps
I heard some scary calls at night that made it hard to sleep.
SCARY + NOUN
consideration, ghosts, glance, horror, i'll, it's, man, movie
It's a scary consideration that we might not have enough money for rent next month.
PREP.
during, than, up, with
The horror movie was way scarier than I expected last night.
ADV.
always, really, such
That horror movie was really scary and I couldn't sleep that night.