Insensate
/ɪnˈsɛnseɪt/noun
Lacking physical sensation or feeling; mentally unaware or unfeeling.
Did you know?Its root is the same Latin base behind sense and sensible—so insensate is basically the old idea of being made 'without sense' rather than just being rude or numb.
Etymological Timeline
Latin
Latin
insensatus
“not having sense; foolish; lacking feeling”
Latin
Latin
in- + sensus
“not + feeling, perception, or sense”
Old French
OF
insensé
“foolish, senseless”
14th–15th Century
English
insensate
“lacking sensation or reason; senseless”
Modern English
English
insensate
“lacking physical sensation or feeling; mentally unaware or unfeeling”