salaisilla

Salaisilla is the plural adessive form of the Finnish adjective salainen, meaning secret. In Finnish, adjectives agree with the nouns they modify in number and case, so salainen changes across forms. The adessive case, marked by -lla, generally indicates location or context; for plural nouns this yields salaisilla, used to mean “on/at/with secret [matters or things].”

Usage and meaning: Salaisilla occurs when describing plural nouns in contexts related to secrecy or hidden aspects. It is a grammatical variant rather than a standalone lexical item. Typical contexts include journalism, political discourse, or literary language when referring to hidden information, covert operations, or confidential topics. Examples include Hän puhui salaisilla asioilla (He spoke about secret matters) and Hankkeen taustalla vaikutti salaisilla suunnitelmilla (The project was advanced with secret plans).

Formation: The headword is salainen. Inflected forms cover singular and plural, various cases, and adjective agreement. Salaisilla is the adessive plural form used with plural nouns in the adessive case.

Etymology: The form derives from the root sala- meaning secret, combined with the Finnish adjectival suffix -inen and the adessive plural ending -illa.

See also: Finnish grammar, adjectives, adessive case, salainen, salaaminen.