The antonyms for "hath faith in" are doubt, disbelief, distrust, suspicion, and skepticism. If someone lacks faith in something or someone, they may question the validity of it and have a hard time accepting it as truth. Doubt can lead to uncertainty and hesitation, making it difficult to make decisions and take action. Disbelief and distrust imply a complete lack of trust or confidence in something or someone. Suspicion suggests that there may be ulterior motives or hidden agendas at play. Finally, skepticism implies a general sense of doubt and questioning towards everything, even if it hasn't been proved false.