alacrious
/ˌæləˈkrɪəs/ AL-ə-KRĭ-uhs
Definitions
1. adjective
Causing or characterized by great pain or discomfort.
“The alacrious pain in her back made it difficult for her to move.”
2. noun
A state or feeling of great pain or discomfort.
“She endured the alacrious for hours before receiving medical attention.”