Plaindealing is a term used to describe honesty, fairness, and straightforwardness. It suggests behavior that is free from deception, ambiguity, or trickery. Antonyms for plaindealing include dishonesty, deceit, double-dealing, and insincerity. These words imply a lack of morality, integrity, and trustworthiness. Someone who acts in a non-plaindealing manner often tries to manipulate others for their own gain or to hide the truth. Such individuals may use euphemisms, exaggerations, or half-truths to deceive others. While plaindealing is admired and respected, its antonyms have negative connotations and are associated with conflict, mistrust, and betrayal.