Stiffness or rigidity is the extent to which an object resists deformation in response to an applied force. [1] The inverse of stiffness is flexibility or pliability: the more flexible an object is, the less stiff it is. [2]

The meaning of STIFFNESS is density, rigidity. How to use stiffness in a sentence.

STIFFNESS definition: the state or condition of being rigid or firm. See examples of stiffness used in a sentence.

STIFFNESS meaning: 1. the quality of being very formal and not relaxed: 2. the quality of being firm, hard, or unable…. Learn more.

stiff′ness n. Synonyms: stiff, rigid, inflexible, inelastic, tense1 These adjectives describe what is very firm and does not easily bend or give way.

Stiffness, denoted by the letter (k), is a measure of the resistance of an object to deformation in response to an applied load. In other words, stiffness is the ability of a material or a structure to resist …

Nov 8, 2025 · Stiffness is one of the most important mechanical properties of a material or structural member. It is defined as the ability of a material to resist deformation when subjected to an external …

Stiffness is resistance to deflection. Stiffness is the resistance of an elastic body to deflection or deformation by an applied force - and can be expressed as k = F / δ (1) where k = stiffness (N/m, lb/in)

Definition of stiffness noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

The quality or state of being stiff; as, the stiffness of cloth or of paste; stiffness of manner; stiffness of character.