Inability to respond to antigenic stimulus. Unresponsiveness may be specific for a particular antigen (see tolerance), or broadly nonspecific as a result of damage to the entire immune system, for example after whole body irradiation.
Found on http://www.encyclo.co.uk/local/21016
noun the quality of being unresponsive; not reacting; as a quality of people, it is marked by a failure to respond quickly or with emotion to people or events; `she began to recover from her numb unresponsiveness after the accident`; `in an instant all the dea... Found on https://www.encyclo.co.uk/local/20974