Noah Webster's Dictionary (a.) Not sensitive; wanting sensation, or wanting acute sensibility.

Multi-Version Concordance Insensitive (1 Occurrence) Isaiah 6:10 Make the hearts of this people fat, and let their ears be stopped, and their eyes shut; for fear that they may see with their eyes, and be hearing with their ears, and their heart may become wise, and they may be turned to me and made well. (See NAS)