unresponsiveness

in immunology
https://doi.org/10.1351/goldbook.13768
Inability to respond to an antigenic stimulus.
Note: 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.
Source:
PAC, 2012, 84, 1113. (IUPAC glossary of terms used in immunotoxicology (IUPAC Recommendations 2012)) on page 1257 [Terms] [Paper]