1) The untrustiness of his character made many people cautious around him.

2) She could sense the untrustiness in his voice as he made promises he couldn't keep.

3) The untrustiness of the company's financial reports raised red flags among investors.

4) Her untrustiness was evident in the way she avoided eye contact when speaking.

5) The untrustiness of the online seller was revealed when customers never received their orders.

6) The untrustiness of his behavior made it difficult for him to form meaningful relationships.

7) The untrustiness of his actions left a trail of broken friendships behind him.

8) The untrustiness of the politician's statements was evident in his inconsistent remarks.

9) Online reviews warned of the untrustiness of the car dealership's sales tactics.

10) The untrustiness of the contractor's work led to numerous complaints from dissatisfied customers.