nonrigid
/ˈnoʊnˈrɪdʒɪd/Definitions
1. adjective
Lacking rigidity; not stiff or firm in structure or composition.
“The nonrigid structure of the fabric made it difficult to create a stable design.”
2. noun
An object or material that is nonrigid in structure.
“The engineer studied the nonrigid properties of the new polymer material.”