Strong's #884: acharistos (pronounced ach-ar'-is-tos)

from 1 (as a negative particle) and a presumed derivative of 5483; thankless, i.e. ungrateful:--unthankful.

Thayer's Greek Lexicon:

̓́

acharistos

1) ungracious

1a) unpleasing

1b) unthankful

Part of Speech: adjective

Relation: from G1 (as a negative particle) and a presumed derivative of G5483

Citing in TDNT: 9:372, 1298

Usage:

This word is used 2 times:

 

Luke 6:35: "is kind unto the unthankful and to the evil."
2 Timothy 3:2: "blasphemers, disobedient to parents, unthankful, unholy,"