Barren land having only a thin coat of grass.
"The scary landscape stretched out before them, barren and covered by only a thin coat of grass."
"The scary was too much for him to handle that night."
Usage: The term scary as a noun refers to barren land with only a sparse covering of grass, though it is far more commonly used today as an adjective describing something that causes fear. Avoid using this specific definition when you intend to describe frightening people or situations, for which the standard adjectival form should be employed instead.
Causing fear or anxiety
"The dark forest was scary because it made everyone feel anxious about getting lost."
The word scary is formed by adding the suffix -y to scare. It entered English as a straightforward way to describe something that causes fear.