mitigating
adj [attrib 作定语]
reducing the severity, violence or pain of sth; moderating 减轻的; 和缓的; 节制的
mitigating circumstances, ie those that partially excuse a mistake, crime, etc (可使错误、 罪行等)减轻的情节
the mitigating effect of pain-killing drugs 镇痛药物的缓解作用.