" insentient "

1: lacking animate awareness or sensation;

  * e.g., " ... refused to believe that the universe as we know it evolved from the random interactions of insentient particles of matter "

•  Synonyms : 

•  inanimate,

•  insensate,

•  insensible,

•  senseless,

•  unfeeling

•  Antonyms : 

•  animate,

•  feeling,

•  sensate,

•  sensible,

•  sensitive,

•  sentient

2: not having or showing a deep understanding of something;

  * e.g., " ... an insentient therapist who failed to see what the teenager's real problem was "

•  Synonyms : 

•  imperceptive,

•  impercipient,

•  unperceptive,

•  unwise

•  Antonyms : 

•  discerning,

•  insightful,

•  perceptive,

•  percipient,

•  sagacious,

•  sage,

•  sapient