disbelieve

I verb be doubtful, be incredulous, be skeptical, be unconvinced, challenge, consider implausible, consider not to be true, consider unproven, consider untrue, discredit, dispute, distrust, doubt, give no credence to, give no credit to, harbor doubts, harbor suspicions, have doubts, have qualms, have reservations, hold not to be true, lack faith, mistrust, non credere, not accept, not believe, not find tenable, question, refuse credence, refuse to admit, refuse to believe, refuse to credit, reject, reject as untrue, remain unconverted, set no store by, suspect, take no stock in, withhold assent II index disavow, disclaim, disown (deny the validity), doubt (distrust), impugn, misdoubt, reject, suspect (distrust)