Ingrateful
Pronunciation : In"grate`ful
Part of Speech : a.
Etymology : [L. ingratus ingrateful (pref. in- not + gratus beloved, dear, grateful) + -ful: cf. F. ingrat. See Grateful.]
Definition : 1. Ungrateful; thankless; unappreciative. Milton. He proved extremely false and ingrateful to me. Atterbury.
2. Unpleasing to the sense; distasteful; offensive. He gives . . . no ingrateful food. Milton. -- In"grate`ful*ly, adv. -- In"grate`ful*ness, n.
Source : Webster's Unabridged Dictionary, 1913