ikimuistoisen

Ikimuistoisen is the genitive singular form of the Finnish adjective ikimuistoinen, which means unforgettable or memorable. The adjective describes people, events, experiences, or places that leave a lasting impression.

Etymology and grammar: ikimuistoinen is formed from iki- (eternal, long-lasting) and muisto (memory). The form ikimuistoisen appears when the noun it modifies is in the genitive singular, as in ikimuistoisen päivän ("of an unforgettable day"). The nominative singular is ikimuistoinen; the plural nominative is ikimuistoiset, and the genitive plural is ikimuistoisten. The adverb is ikimuistoisesti, and the related noun ikimuistoisuus refers to the quality or state of being unforgettable.

Usage: Ikimuistoisen is common in everyday Finnish, journalism, and literature, often signaling a stronger impression than unohtumaton (unforgettable) and mieleenpainuva (memorable/impressive), though with slightly different nuance. For example: Se oli ikimuistoinen ilta. Hän kertoi ikimuistoisen tarinan.

See also: unohtumaton, mieleenpainuva, ikimuistoisuus.