poistunut

Poistunut is a Finnish past participle and adjective derived from the verb poistua, which means to leave, depart, or disappear. The word describes someone or something that has already left a location or ceased to be present.

In everyday Finnish, poistunut appears most often in constructions with the auxiliary verb on to form present-perfect statements: Hän on poistunut paikalta (He has left the scene). It can also function as a standalone adjective to indicate former status or absence, as in poistunut jäsen (a former member) or poistuneet talot (the buildings that have disappeared).

The form is inflected for number and agrees with the noun it modifies. The root is poistu-, with the participial suffix -nut, following typical Finnish past participle patterns. Poistua is intransitive; its close relative poistaa means to remove something (a transitive verb) and behaves differently in conjugation.

Related terms include poistuminen (departure, disappearance), which is the noun form, and poisto (removal, deletion). Poistunut should not be confused with poistaa, which, while etymologically related, has a different meaning and valence.

In summary, poistunut signals that someone or something is no longer present due to having left or disappeared, and it is commonly used in both descriptive contexts and perfect-tense constructions.