Strong's Greek #278
ἀμεταμέλητον

Englishman's Concordance (References)

ἀμεταμέλητον ametamelēton — 1 Occurrence

2 Corinthians 7:10 - Adj-AFS
GRK:εἰς σωτηρίαν ἀμεταμέλητον ἐργάζεται ἡ
NAS: a repentance without regret, [leading] to salvation,
KJV: salvation not to be repented of: but
INT: to salvation without regret produces