Definitions:

1. A sensation of intense, piercing discomfort that may come and go abruptly. ADJECTIVE
   • She winced in response to the lancinating pain shooting up her spine.
2. Used to describe a sudden, sharp, and stabbing pain, typically experienced in a localized area of the body. ADJECTIVE
   • With each step, he felt a lancinating pain in his injured ankle.

Synonyms:

• acute
• cutting
• gnawing
• knifelike
• piercing
• razor-edged
• sharp-edged
• stabbing