Trusting is a fundamental aspect of building relationships with others. The opposite of distrustful is 'trustful.' Trustful refers to the feeling of faith, belief, or confidence in someone or something. Trust is essential in all aspects of life, whether it be personal or professional. In contrast, other antonyms for distrustful could be suspicious, doubtful, unsure, hesitant, unconvinced, or uncertain. Trustful individuals tend to foster better relationships with others due to their ability to believe and rely upon them. Therefore, it is crucial to work on building trust in relationships to help them become successful and fulfilling.