Pocket Thesaurus
Antonyms of complaint
criticism, grievance, objection, gripe, protest, accusation, charge, trouble, stink, grouse, expostulation, dissatisfaction, rap, moan, beef, wail, clamor, kick, cavil, squawk, annoyance, jeremiad, grumble, guff, rumble, reproach, lament, whine, protestation, remonstration, remonstrance, representation, fault-finding, plaint
See this content immediately after install