inflexibility
US /ɪnˌflek.səˈbɪl.ə.t̬i/
UK /ɪnˌflek.səˈbɪl.ə.t̬i/

1.
the quality of being unwilling to change or compromise
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His inflexibility on the terms of the contract led to a stalemate.
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The company's inflexibility in adapting to new market trends resulted in significant losses.
2.
the inability to be bent or changed in shape
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The inflexibility of the metal made it difficult to mold.
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The material's inflexibility means it cannot be used for curved surfaces.