Arvaamattoman
Arvaamattoman is the genitive singular form of the Finnish adjective arvaamaton, meaning "unpredictable" or "incalculable." It is not a standalone noun; it functions as an attributive modifier that agrees with a noun in genitive case. For example, arvaamattoman tilanteen means “the situation’s unpredictability” in a genitive construction, with arvaamattoman describing the noun that follows in genitive (tilanteen). The form can also appear in phrases such as arvaamattoman päätöksen (the decision’s unpredictability) or arvaamattoman myrskyn (of the unpredictable storm).
In usage, arvaamaton describes something whose outcome cannot be reliably foreseen. The genitive form arvaamattoman appears
Etymology-wise, arvaamaton derives from arvailla, meaning to guess, plus the Finnish suffix -maton which conveys negation