inferiority

该产品的低劣性在其糟糕的质量上表现得很明显。

The ___inferiority of the product was evident in its poor quality.

在这些才华横溢的姐妹面前，我总有一种自卑感。

With these talented sisters, I always had a feeling of ___inferiority.

与同事相比，她被自卑感所困扰。

She was plagued by feelings of ___inferiority compared to her colleagues.