epätyypillistä
Epätyypillistä is the partitive form of the Finnish adjective epätyypillinen, meaning atypical or untypical. The term is formed from ep- as a negation prefix and tyypillinen, which means typical. It is used to describe things that do not conform to the usual type, pattern, or expectation within a given context. As an adjective, epätyypillinen and its inflected forms agree with the noun they modify, for example epätyypillistä käytöstä (untypical behavior) or epätyypillisiä piirteitä (atypical features).
The word is common in both everyday language and formal, especially scientific, discourse. In everyday Finnish
Nuance and usage notes: epätyypillinen is generally neutral, but tone can shift depending on context and precision.