Hard Feelings Meaning

(idiomatic) Resentment, anger.

Example: 1827, James Fenimore Cooper, The Prairie, ch. 31:
  If you will name the price you put upon the articles, it is possible the damage may be quietly settled between us, and all hard feelings forgotten.
1922, Upton Sinclair, They Call Me Carpenter, ch. 1:
  This foreign visitor asked me how I felt about the war, and I told him that it was over, and I bore no hard feelings.
2007, Tim McGirk, "The West Bank: Mission Critical," Time, 16 Aug. :
  The eviction itself went relatively smoothly, but the hard feelings it generated resound deep inside Israeli army barracks.