Siisti

Siisti is a Finnish adjective meaning clean, tidy, or neat. It describes the condition or appearance of objects, spaces, clothing, and behavior, and can be used both literally and figuratively to denote order, propriety, or a well-organized situation. In colloquial speech, siisti can also express approval or enthusiasm, roughly equating to “cool” or “great” when referring to ideas, plans, or performances.

Etymology and related forms: Siisti is a native Finnish word. The related noun is siisteys (cleanliness) and several derivatives come from the same root, such as siistiä in nominalized phrases. The form follows standard Finnish adjective inflection: siisti (positive), siistimpi (comparative), siistein (superlative). The adverbial form is siististi (neatly).

Usage and forms: In predicative use, you say talo on siisti (the house is clean). In attributive use, siisti talo (a clean/tidy house). The plural form is siistit (the clean ones) or siistit talot (the clean houses). Common collocations include siisti koti (a neat home), siisti käytös (proper conduct), and siisti meininki (tidy, well-run vibe). Siisti can also describe non-physical qualities, such as siisti järjestys (orderly arrangement) or siisti kokonaisuus (well-structured whole).

Colloquial usage: In everyday Finnish, siisti can express approval or admiration, as in Siisti idea! or Tämä on siisti veto. This sense is informal and depends on context and tone.