Sentence:  Somehow, when Bertram Ingledew let it once be felt he did not wish to be questioned on any particular point, even women managed to restrain their curiosity: and he would have been either a very bold or a very <WSD>insensitive</WSD> man who would have ventured to continue questioning him any further. 
Meaning of the word marked with <WSD> tags:  Not expressing normal emotional feelings; cold; tactless; undiplomatic