huomattavilla
Huomattavilla is the plural adessive form of the Finnish adjective huomattava, meaning noticeable, significant, or notable. It is used when the noun it modifies is in the adessive case and plural, so the phrase describes something in a noticeable or noteworthy way that is expressed with an adessive plural noun.
In Finnish, adjectives agree with the noun they modify in number and case, and thus huomattava appears
Usage and register: huomattavilla is typical in formal or analytical Finnish, where speakers discuss methods, outcomes,
Etymology and relation: the form is produced from the base adjective huomattava by adding the adessive plural
See also: Finnish adjectives, Finnish grammar, case endings.