1. 剧烈痛：钝痛 dull ; obtuse ; | 剧烈痛 sharp ; excruciating ; tormenting ; torturing ; racking ; agonizingly severe | 不断阵痛 gnawing ; griping

noun

1. the deliberate, systematic, or wanton infliction of physical or mental suffering by one or more persons in an attempt to force another person to yield information or to make a confession or for any other reason

e.g. it required unnatural torturing to extract a confession

Synonym: torture