#4644 σκληροτράχηλος sklerotrachelos {sklay-rot-rakh'-ay-los}

 from G4642 and G5137; TDNT - 5:1029,816; adj

—Greek Word Study (Transliteration-Pronunciation Etymology & Grammar)

 1) stiffnecked
 2) stubborn, headstrong, obstinate

—Thayer's (New Testament Greek-English Lexicon)

—Strong's (Greek Dictionary of the New Testament)

—NAS Exhaustive Concordance of the Bible with Hebrew-Aramaic and Greek Dictionaries

 AV - stiffnecked 1; 1

—Exhaustive Concordance (KJV Translation Frequency & Location)