Insensible

·adj Not sensible or reasonable; meaningless.

II. Insensible ·adj Destitute of the power of feeling or perceiving; wanting bodily sensibility.

III. Insensible ·adj Incapable of being perceived by the senses; imperceptible. Hence: Progressing by imperceptible degrees; slow; gradual; as, insensible motion.

IV. Insensible ·adj Not susceptible of emotion or passion; void of feeling; apathetic; unconcerned; indifferent; as, insensible to danger, fear, love, ·etc.;

— often used with of or to.