1. not willing to trust others; suspicious or doubtful of others’ motives

Examples

• After being betrayed by his business partner, he became untrusting of new investors.
• The untrusting child refused to accept candy from strangers.
• Her untrusting nature made it difficult for her to form close friendships.
• The witness remained untrusting of the police officer’s promises.
• Years of disappointment had left him untrusting and cynical.
• She gave him an untrusting look when he offered to help.