hyporeactive

hy·po·re·ac·tive .hī-pō-rē-'ak-tiv adj having or showing abnormally low sensitivity to stimuli <her patellar and Achilles reflexes were \hyporeactive (Andres Alcaraz )(et al)> <a \hyporeactive patient>

hy·po·re·ac·tiv·i·ty -(.)rē-.ak-'tiv-ət-ē n, pl -ties

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hy·po·re·ac·tive (hi″po-re-akґtiv) pertaining to or characterized by a less than normal response to stimuli. Cf. irritability and reaction.