'Pitch-dark' definitions:

Definition of 'pitch-dark'

From: WordNet
adjective
Extremely dark; "a black moonless night"; "through the pitch-black woods"; "it was pitch-dark in the cellar" [syn: black, pitch-black, pitch-dark]

Definition of 'Pitch-dark'

From: GCIDE
  • Pitch-dark \Pitch"-dark`\, a. Dark as a pitch; pitch-black. [1913 Webster]