virheellisistä

Virheellisistä is a Finnish inflected form of the adjective virheellinen, meaning faulty or erroneous. It is the elative plural form, used to indicate “from the erroneous ones” or “out of the erroneous ones.” In practice, it appears when the modified noun is in the elative plural, such as lähteistä or väitteistä.

Usage of virheellisistä is common in formal and analytic writing to describe information, sources, or statements that are considered incorrect. For example, virheellisistä lähteistä means “from erroneous sources,” and virheellisistä väitteistä means “from erroneous claims.” The phrase signals that what is being referred to originates in error or should be treated with caution because it is based on mistakes.

Grammatical notes: As with other Finnish adjectives, virheellinen agrees with the noun it modifies in number and case. In the elative plural, the form becomes virheellisistä. Other related plural forms include virheellisten (genitive plural) and virheellisiä (partitive plural), which correspond to different syntactic roles.

See also: virhe (error), virheellisyys (erroneousness), virheellinen (the base adjective), virheelliset (nominative plural form meaning “the erroneous ones”).