vaihdettu

Vaihdettu is a Finnish word that functions as the past passive participle of the verb vaihtaa, meaning to change, exchange, or swap. It is used to indicate that a change or replacement has been completed, typically without specifying the agent responsible for the action. The form reflects a completed action done to the subject by an unspecified or general agent.

In everyday Finnish, vaihdettu appears in both descriptive and predicative positions. For example, Ovi on vaihdettu literally means “The door has been replaced.” Another common usage is in maintenance or product texts, such as Paristot on vaihdettu viime viikolla, meaning “The batteries were replaced last week.” As a participle, vaihdettu can also function as an attributive modifier in contexts where the emphasis is on the fact that a replacement has occurred, rather than on who performed it.

Grammatical notes: vaihdettu is formed from the verb stem vaiht- with the past passive participle suffix -ettu, following Finnish consonant and vowel harmony rules. It can be combined with auxiliary verbs to express different tenses or aspects, most commonly in the perfect passive construction (on vaihdettu) to indicate a completed action with present relevance.

Related terms include vaihtaminen (the act of changing or exchange) and vaihto (exchange, switch). Vaihdettu is a standard, neutral term used across formal and informal Finnish to convey that a replacement or swap has already taken place.