Jäykissä

Jäykissä is the inessive plural form of the Finnish adjective jäykkä, meaning stiff or rigid. In Finnish, adjectives agree with the nouns they modify in number and case, and the inessive case denotes a location or state of being “in” something. When the noun is plural and inessive, the adjective takes the ending -issä, so jäykkä becomes jäykissä.

In usage, jäykissä describes physical stiffness, such as a body part or object, and can also be used figuratively to indicate mental or procedural rigidity. The phrase laikely appears before a plural noun: for example jäykissä käsissä (in stiff hands), jäykissä polvissa (in stiff knees), or jäykissä asenteissa (in rigid attitudes). The structure reflects standard Finnish adjective agreement: the form of the adjective matches the noun’s plural inessive.

Jäykissä is not a standalone noun but a grammatical form of jäykkä. Its degree forms follow normal Finnish comparative and superlative patterns: jäykempi (stiffer), jäykimmät (the stiffest). The base meaning remains “stiff” or “rigid,” but the context—physical condition, posture, or inflexibility in thinking—drives the interpretation.

See also: Finnish grammar, adjective inflection, inessive case, jäykkä.

Notes: Because Finnish relies on case endings rather than prepositions, forms like jäykissä are common in descriptive writing, medical descriptions, sports commentary, and literature to convey nuanced states of stiffness.