rigid

rigidity | American Dictionary

rigidity
noun[ U ]
us/rəˈdʒɪd·ɪ·t̬i/
the quality or characteristic of not permitting any change:
We will make sure that federal law operates with high standards and common sense, not just bureaucratic rigidity (= not just lack of willingness to change by government officials ).
the quality of not being able to bend or be bent:
Steel is known to lose half of its rigidity at 1,000 degrees and begins to melt at 2,750 degrees.

Examples of rigidity

rigidity
An inefficient tax system could thus have survived if political rigidities prevented a ruler from changing it.
Once one moves beyond these special cases, menu cost models that display real rigidity are also likely to display indeterminacy.
To address this question they define the concept of a real rigidity.
It might be useful here to summarize some of the categories of rules which affect movement in and around places, in descending order of rigidity.
The gap between end effector and non-rigid product is to some extent self-regulating and imposes local rigidity which is useful during manipulation.
Family rigidity was also associated with higher maternal anxiety and with a more difficult infant temperament.
The aim was to reduce hierarchy and rigidity in the policy process.
Establishing whether rigidity holds for a property is not only central in order to distinguish necessary truth but also to recognise roles from concepts.
As studies of modern less developed economies have shown, the "informal sector" possesses enormous economic dynamism, deriving mainly from its freedom from costly formal-sector rigidities.
Conjugacy and rigidity for nonpositively curved manifolds of higher rank.
An important question that motivated this investigation was whether wage or price rigidities make a valid case for policy activism.
Recall that in general the notions of (absence of) partial rigidity and mild mixing are not related.
However, the rigidity of the parameter-setting account is not matched by the same rigidity in the empirical patterns.
In contrast, downward price rigidity exacerbates the severity of recessionary conditions on real output.
Thus, altering the local rigidity of a channel protein during a simulation is likely to influence the dynamics and energetics of permeation.
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