\Ri*gid"i*ty\, n. [L. rigiditas: cf. F. rigidit['e].
See {Rigid}.]
1. The quality or state of being rigid; want of pliability;
   the quality of resisting change of form; the amount of
   resistance with which a body opposes change of form; --
   opposed to {flexibility}, {ductility}, {malleability}, and
   {softness}.
2. Stiffness of appearance or manner; want of ease or
   elegance. --Sir H. Wotton.
3. Severity; rigor. [Obs. orR.] --Bp. Burnet.
Syn: Stiffness; rigidness; inflexibility.