sesonillisesti

Sesonillisesti is a Finnish adverb meaning “seasonally” or “in a seasonal manner.” It describes events, processes, or conditions that vary with the seasons. The word is formed from the adjective sesonillinen (seasonal) with the adverbial suffix -isesti. In everyday Finnish, sesonillisesti is relatively formal; speakers and writers often use kausittain or kausiluonteisesti to express the same idea.

The term is used in contexts where seasonal fluctuations are relevant. In agriculture, it may refer to yields or practices that change with spring and autumn. In energy and climate discussions, it can describe seasonal variations in consumption or weather patterns. In tourism and retail, sesonillisesti highlights periods of higher or lower activity tied to seasons. In academic or policy writing, it serves to describe phenomena that track the seasonal cycle without specifying causal mechanisms.

Synonyms or near-synonyms include kausittain and kausiluonteisesti, though these can carry slightly different connotations. Sesonillisesti tends to appear in more technical or formal prose, while kausittain is common in everyday language. The term is thus mainly encountered in scientific, statistical, or industry texts, and less frequently in casual speech.