resupine
/rɪˈsuːpaɪn/Definitions
1. adjective
lying or placed on one’s back, especially in a state of inactivity or repose
“The resupine figure slumbered peacefully in the sun.”
2. noun
a person lying or placed on their back, especially in a state of inactivity or repose
“The resupine form of the statue was a testament to its enduring beauty.”