to resent; to harbor a grudge against; to loathe; resentment; rancor

complaint

grievance; resentment; complaint

grudge; pent-up resentment; consuming bitterness

an unhappy couple (formal writing)

to complain; to grumble; to harbor a complaint; to feel dissatisfied

gratitude and grudges; resentment; grudges; grievances

to complain; to grumble (about); to reproach; to blame

hatred and desire for revenge

grief; resentment; aggrieved; plaintive