CRACKING (adjective) definition and synonyms | Macmillan Dictionary.
Is cracked an adjective?
cracked (adjective) cracking (adjective) crack–up (noun) crack baby (noun)
Is cracking an adverb?
As detailed above, 'cracking' can be a noun, an adjective, a verb or an adverb. ... Adjective usage: We had a cracking time. Adverb usage: It was a cracking good show.