raivoisa

Raivoisa is a Finnish adjective meaning furious, ferocious, or intensely strong in temper or effect. It describes people who are very angry, animals acting with aggression, or phenomena such as storms and winds that appear powerful or violent. In English it is typically translated as furious, ferocious, or vehement depending on context.

Etymology: It is formed from the noun raivo, meaning rage or fury, with the suffix -isa that creates adjectives describing a characteristic or tendency.

Usage: The term has a strong negative or dramatic connotation and is used in both everyday speech and literary Finnish. Examples: raivoisa mies (a furious man) or raivoisa myrsky (a furious storm). The form changes with grammar: nominative singular is raivoisa; genitive singular raivoisan; plural raivoisat. The adverbial form is raivoisesti, meaning “fiercely” or “in a furious manner.”

Related terms include raivo (rage, fury), raivostua (to become furious), and raivokas (fierce, aggressive). The word is common across registers and is suitable for descriptive writing but can carry strong emotional weight.