insensible
/insenˈsible/ · B2 · adj
insensible, insensitive, callous, cold, tactless
🪨 in- (not) + sensible (feeling): a person with no feeling, like a stone
Spanish insensible = in- (not) + sensible (able to feel). Someone insensible does not react to pain or others' emotions, so they come across as callous, cold or tactless. Careful: it is not the English word sensible (reasonable); that is sensato in Spanish.