Opastettua

Opastettua is the partitive form of the Finnish past passive participle opastettu, meaning "guided" or "led." It is derived from the verb opastaa, which means to guide or to conduct someone through a place or activity. The word is commonly used to describe experiences, tours, or materials that have been guided or prepared for a client or audience.

In Finnish, past passive participles function as adjectives and are declined to match the noun they describe. When the object is indefinite or expressed in the partitive, the participle takes the form opastettua, for example in phrases like opastettua kierrosta ("a guided tour") or opastettua materiaalia ("some guided material"). In contexts with definite nouns or other cases, other inflected forms of the participle may be used, such as opastettu kierros for a definite guided tour or corresponding genitive forms.

Opastettua is part of a broader family around opastaa: opastettu (guided), opastettuja kierroksia (guided tours in the plural), opastus (guidance or instruction), and opas (guide). The term is common in tourism, museums, education, and event descriptions, where a service or experience is described as having been guided for participants.

Examples commonly found in practice include: Tarjoamme opastettua kierrosta kaupungin vanhassa osassa. Museossa on useita opastettuja kierroksia. These usages illustrate how opastettua functions as a marker of a guided, prepared experience within Finnish sentence structure.