'Stiff-necked' definitions:

Definition of 'stiff-necked'

(from WordNet)
adjective
Haughtily stubborn; "a stiff-necked old Boston brahmin"

Definition of 'Stiff-necked'

From: GCIDE
  • Stiff-necked \Stiff"-necked`\, a. Stubborn; inflexibly obstinate; contumacious; as, stiff-necked pride; a stiff-necked people. --Ex. xxxii. 9. [1913 Webster]