rigidity /ɹɪˈd͡ʒɪdɪti/ noun4 •The quality or state of being rigid; lack of pliability; the quality of resisting change of physical shape.The metal’s rigidity made it hard to bend.She disliked the rigidity of the rules. •The amount of resistance with which a body opposes change of form. •Stiffness of appearance or manner; want of ease or elegance. •stickiness (of prices/wages etc.). Describing the tendency of prices and money wages to adjust to changes in the economy with a certain delay. formsrigidities