eimuodollisen
Eimuodollisen is a Finnish adjective form used to signal informal or non-formal character. It is not a widely standardized dictionary entry, but it appears in casual speech and some sociolinguistic discussions as a counterpart to muodollinen (formal). The form is the genitive singular of the adjective eimuodollinen, and it is used to modify a noun in contexts such as eimuodollisen tilaisuuden (an informal event).
In usage, eimuodollinen/eimuodollisen describes events, attire, language, or procedures that eschew formal codes of dress, ceremony,
Notes on nuance and style indicate that eimuodollisen is most likely to appear in spoken Finnish, contemporary
See also: muodollinen, (related concepts in Finnish describing formality levels) and language-usage discussions around informal registers.