flasque
/ˈflæsɪd/ FLAS-id
Definitions
1. adjective
lacking firmness or tone; soft and weak, especially of the muscles.
“The athlete’s flaccid muscles after the long winter break were a concern for his coach.”
2. noun
a state of being flaccid or lacking firmness.
“The doctor examined the patient’s flaccid condition to determine the cause of her weakness.”