Definition: not noticing or not caring about other people's feelings Level: C1
他那不敏感的评论深深伤害了她的感情。
His ___insensitive comment hurt her feelings deeply.
他对自己同事的苦恼完全无动于衷。
He was completely ___insensitive to his colleague's distress.
独处时间过长会让人变得对他人的需求麻木不仁。
Spending too much time alone can make a person ___insensitive to the needs of others.
