tukkoisen

Tukkoisen is a Finnish adjective form used to describe congestion or jammed conditions. It conveys a sense of being crowded, clogged, or blocked, and is commonly applied to traffic, queues, and other situations where movement is impeded. The form is typically encountered in phrases where the noun that follows is in genitive, such as tukkoisen liikenteen or tukkoisen ruuhkan, meaning “of congested traffic” or “the congested rush.”

Etymology and grammar: Tukkoisen derives from tukko, meaning bottleneck or clog, with the derivational suffix -isa to form the adjective tukkoisa meaning “jammed, congested.” The ending -inen marks the adjective, and tukkoisen is the genitive singular form used before a noun in genitive, for example tukkoisen liikenteen. The corresponding partitive is tukkoista (e.g., tukkoista liikennettä). The adverbial form is tukkoisesti, used to describe doing something in a congested manner, though it is less common in everyday traffic reporting than the noun-based constructions.

Usage notes: Tukkoisen is most frequent in contexts involving traffic or crowds, as in journalism, city planning, or descriptive writing. It emphasizes the state of congestion rather than the object itself. A closely related noun is tukkoisuus, which denotes the concept or condition of congestion.

See also: tukko, tukkoisuus, liikenne, ruuhka.