jäykistyvä
jäykistyvä is a Finnish word that translates to "stiffening" or "becoming rigid" in English. It is a present active participle derived from the verb jäykistyä, which means to stiffen, become stiff, or grow rigid. The word can be used to describe a physical process, such as a substance hardening or a muscle becoming tense, or it can be used metaphorically to describe a change in attitude or demeanor.
In a medical context, jäykistyvä might refer to the stiffening of joints or muscles due to conditions
Metaphorically, jäykistyvä can describe someone becoming less flexible in their thinking or more unwilling to change