Antonyms of adj sentient

2 senses of sentient

Sense 1
sentient (vs. insentient), animate -- (endowed with feeling and unstructured consciousness; "the living knew themselves just sentient puppets on God's stage"- T.E.Lawrence)

insentient (vs. sentient), insensate -- (devoid of feeling and consciousness and animation; "insentient (or insensate) stone")
        => unfeeling -- (devoid of feeling or sensation; "unfeeling trees")

Sense 2
sentient -- (consciously perceiving; "sentient of the intolerable load"; "a boy so sentient of his surroundings"- W.A.White)

INDIRECT (VIA conscious) -> unconscious -- (not conscious; lacking awareness and the capacity for sensory perception as if asleep or dead; "lay unconscious on the floor")

Similarity of adj sentient

2 senses of sentient

Sense 1
sentient (vs. insentient), animate -- (endowed with feeling and unstructured consciousness; "the living knew themselves just sentient puppets on God's stage"- T.E.Lawrence)
       => sensate -- (having physical sensation; "sensate creatures")

Sense 2
sentient -- (consciously perceiving; "sentient of the intolerable load"; "a boy so sentient of his surroundings"- W.A.White)
       => conscious (vs. unconscious) -- (knowing and perceiving; having awareness of surroundings and sensations and thoughts; "remained conscious during the operation"; "conscious of his faults"; "became conscious that he was being followed")