destitute of the power of feeling or perceiving; wanting bodily sensibility.-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.-incapable of being perceived by the senses; imperceptible. hence: progressing by imperceptible degrees; slow; gradual; as, insensible motion.-not sensible or reasonable; meaningless.