a lack of feeling or sympathy for other people's feelings, or an unwillingness to give importance to something

His insensitivity towards the feelings of others is remarkable. 很明显他不在乎别人的感受。

Her opponents have said the remark shows insensitivity to the situation. 她的反对者表示，这番言论表明她对局势的不敏感。

a lack of reaction to something, or a lack of ability to feel something

an insensitivity to pain/light/noise 对疼痛的不敏感/对光的不敏感/对噪音的不敏感

Diabetes begins as a cellular insensitivity to insulin. 糖尿病源于细胞对胰岛素失去了敏感性。