Synonyms of flack

1 Syllable
knock, yell, stink, pain, kick, trial, grief, cross, howl, wrong, case, beef, squawk, roar, blast, rap
2 Syllables
trouble, distress, holler, sorrow, rumble, hardship, grouse, hoo-ha, rigor
3 Syllables
objection, affliction, damage, outrage, imbroglio, violence, bellyache, grievance, jeremiad, injury, resentment
4 Syllables
injustice, tribulation, unhappiness