Ancient Greek lemma · Strong’s G884

ἀχάριστος

acharistos · /akh-ar'-is-tos/ — “ungracious”

ungracious, unpleasant; without grace; charm; more thankless; ungracious, unfavourable; ungrateful, thankless; thankless soil; unrequited; thanks; refused; with a bad grace, with an ill will; sulkily; antidote; eyesalve

Derivation: from ἀ- (not) + χάρις (grace)