Invidious
INVID'IOUS, adjective [Latin invidiosus, from invideo, to envy; in and video, to see. Invideo signified properly, to look against.]
1. Envious; malignant.
2. Likely to incur ill will or hatred, or to provoke envy; hateful. [This is the usual sense.]
Agamemnon found it an invidious affair to give the preference to any one of the Grecian heroes.