epäonnistu
Epäonnistu is a Finnish verb meaning to fail or be unsuccessful. It is formed by adding the negating prefix ep- to the root onnu- tied to the verb onnistaa/onnistua, which means to succeed. The word is intransitive and typically describes events, attempts, plans or actions that do not achieve their intended result.
In practical use, epäonnistu is conjugated like other Finnish verbs. The present tense is epäonnistuu, as in
The past participle epäonnistunut is commonly used as an adjective, e.g., epäonnistunut yritys (a failed business).
See also: onnistu, epäonnistuminen, onnistuminen. Etymologically, epäonnistu reflects the productive Finnish pattern of forming negated verbs