adjective, scarc·er, scarc·est. insufficient to satisfy the need or demand; not abundant: Meat and butter were scarce during the war. seldom met with; rare: a scarce book.
Is scarce an adverb or adjective?
SCARCE (adverb) definition and synonyms | Macmillan Dictionary.
Is scarce an adverb?
Adverb I could scarce believe what I was hearing.