Webster's Revised Unabridged Dictionary · 1913

Scary

Scary , noun

[Prov. English scare scraggy.]

Barren land having only a thin coat of grass. [Provincial English]

Scary , adjective

[From Scare.]

1.
Subject to sudden alarm. [Colloquial United States] — Whittier
2.
Causing fright; alarming. [Colloquial United States]