Insensible (adjective)

Not capable of being perceived by the senses or the mind; not able to feel or understand; unconscious.

Origin:

From the latin words in meaning 'not' and sensibilis meaning 'sensitive, sensible'.

Examples:

1. The insensible patient was unable to respond to stimuli.
2. The insensible rock showed no signs of life.
3. The insensible behavior was a result of exhaustion.
4. Insensible loss refers to the amount of fluid loss that cannot be measured.
5. The insensible state was induced by the anesthesia.