1) His untrustworthiness was evident when he was caught lying about his whereabouts.

2) The untrustworthiness of the seller made me hesitant to make a purchase.

3) Her untrustworthiness in keeping secrets resulted in her friends distancing themselves from her.

4) The company's untrustworthiness was revealed when the truth about their pricing strategy came to light.

5) I knew I couldn't rely on him due to his untrustworthiness in past dealings.

6) The politician's untrustworthiness became a hot topic during his reelection campaign.

7) The jury was convinced of the defendant's untrustworthiness after hearing contradictory testimonies.

8) The untrustworthiness of online reviews made it challenging to choose a reputable product.

9) The team captain was replaced due to concerns about her untrustworthiness.

10) The company's reputation suffered as a result of the untrustworthiness of its leadership.