ἀχάριστος (acháristos|ach-ar'-is-tos|adjective|ungrateful)
[Grk] ἀχάριστος LN: 25.101, 33.353 GK: G940
Derivation: from Α (as a negative particle) and a presumed derivative of χαρίζομαι;
Strong's: thankless, i.e. ungrateful
KJV: --unthankful.
See: Α
See: χαρίζομαι