The term "cardsharpers" refers to people who are skilled at cheating in games of cards. Antonyms for this word could include "honest players," "fair competitors," or "legitimate gamers." These words bring to mind individuals who play by the rules and rely on their own abilities and strategies rather than resorting to trickery and deceit. Other antonyms could include "amateurs," "novices," or "beginners," which suggest a lack of skill or experience in the game. Whatever the antonym used, it is clear that cardsharpers are not respected members of the gaming community and are often frowned upon for their dishonest behavior.