Rigidity is commonly used in both literal and figurative ways. It’s often used in the context of stiff materials and inflexible people.

In @iScience_CP : #Fulvestrant treatment considerably reduced velocity of #breastcancer cells and the length of their trajectories indicating that the rigidity of the cellular monolayer was increased.https://t.co/zVUXXJG6Ic https://t.co/0qM6oMCCBq #Cancer pic.twitter.com/uzuImN21Rd

— Bf3R_centre (@Bf3R_centre) December 11, 2020

I have no interest in ever *not* being playful and lighthearted and wild and open and loving. Rigidity is for someone else. My life is meant to taste good.

— Bougie Banton (@aurajones) December 14, 2020

Rigidity in the face of complexity is toxic. pic.twitter.com/33sKjzYNKT

— Ankur Gandhi (@AnkurGa73813071) December 8, 2020

Did you mean frigidity?