rigidity

rigid +‎ -ity, from Latin rigiditas.

• IPA^(key): /ɹɪˈd͡ʒɪdɪti/

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rigidity (countable and uncountable, plural rigidities)

1. The quality or state of being rigid; lack of pliability; the quality of resisting change of physical shape
2. The amount of resistance with which a body opposes change of form.
3. Stiffness of appearance or manner; want of ease or elegance.
4. (economics) stickiness (of prices/wages etc.). Describing the tendency of prices and money wages to adjust to changes in the economy with a certain delay.

• rigidness

• flexibility
• ductility
• malleability
• softness

• “rigidity”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.