"stiffness" in the noun sense
1. stiffness
the physical property of being inflexible and hard to bend
2. stiffness
the property of moving with pain or difficulty
"he awoke with a painful stiffness in his neck"
3. stiffness
firm resoluteness in purpose or opinion or action
"a charming host without any touch of stiffness or pomposity"
4. awkwardness, clumsiness, gracelessness, stiffness
the inelegance of someone stiff and unrelaxed (as by embarrassment)
5. severity, severeness, harshness, rigor, rigour, rigorousness, rigourousness, inclemency, hardness, stiffness
excessive sternness
"severity of character"
"the harshness of his punishment was inhuman"
"the rigors of boot camp"
Source: WordNet® (An amazing lexical database of English)
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