sensibility vs sentience

sensibility and sentience both are nouns.

Word	Noun	Adjective	Verb	Adverb
sensibility	Yes	No	No	No
sentience	Yes	No	No	No

As nouns, sentience is a hypernym of sensibility; that is, sentience is a word with a broader meaning than sensibility:

sensibility: (physiology) responsiveness to external stimuli; the faculty of sensation
sentience: the faculty through which the external world is apprehended

Other hypernyms of sensibility include sensation, sense, sensory faculty, sentiency.

sensibility (noun)	sentience (noun)
mental responsiveness and awareness	the readiness to perceive sensations; elementary or undifferentiated consciousness
(physiology) responsiveness to external stimuli; the faculty of sensation	the faculty through which the external world is apprehended
refined sensitivity to pleasurable or painful impressions	state of elementary or undifferentiated consciousness