What are the antonyms for SINCERE?

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Synonyms for SINCERE

Usage Examples for SINCERE

  1. " Accept my sincere thanks," said Ameni. - "The Complete Historical Romances of Georg Ebers" by Georg Ebers
  2. There was silence in the room, while three sincere hearts were lifted up in prayer; and surely Christ bent low to listen. - "Tip Lewis and His Lamp" by Pansy