insensible
Definitions
Unconscious or unaware of one's surroundings.
Lacking physical sensation or feeling; numb.
Indifferent or emotionally unresponsive.
Examples
After the heavy blow to his head, he lay insensible on the cold floor.
She remained completely insensible to the cold wind blowing through the open window.
Synonyms
unconscious unaware numb callous indifferent unresponsive imperceptible
Antonyms
conscious aware sensitive responsive perceptive sentient alert