- Original: ἀπιστία - Transliteration: Apistia - Phonetic: ap-is-tee'-ah - Definition: 1. unfaithfulness, faithless 2. want of faith, unbelief 3. weakness of faith - Origin: from G571 - TDNT entry: 08:54,8 - Part(s) of speech: Noun Feminine - Strong's: From G571 ; faithlessness that is (negatively) disbelief (want of Christian faith) or (positively) unfaithfulness (disobedience): - unbelief. Total KJV Occurrences: 11 • unbelief, 11 Mat 13:58; Mar 6:6; Mar 9:24; Mar 16:14; Romans 3:3; Romans 4:20; Romans 11:20; Romans 11:23; 1 Timothy 1:13; Hebrews 3:12; Hebrews 3:19