highly 'sensitive' information [=information that could be harmful if many people knew it; information that should be kept secret]
She's painfully/overly 'sensitive about' her looks. [=she cares very/too much about what people say or think about her looks]
Now that I'm older, I'm more 'sensitive to' (the) cold. [=I feel colder in cold surroundings now than I did in the past]
(..) - Maybe you can still smell it on me. - Listen, sonny... Come on, now. There's nothing personal. Come on, fella. He didn't mean you. Let's not be so sensitive. This sensitivity I can understand. OK, look. Let's stop the arguing. We're only wasting time. Your turn down there. Let's go. (..)1957 12 Angry Men