Pocket Thesaurus
Antonyms of sincerity
artlessness, bona fides, candor, earnestness, frankness, genuineness, good faith, goodwill, guilelessness, heart, honor, impartiality, innocence, justice, openness, probity, reliability, seriousness, sincereness, singleness, trustworthiness, truth, truthfulness, veracity, wholeheartedness
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