tukkeutuu

Tukkeutuu is a Finnish verb form meaning “it becomes clogged” or “it gets blocked.” It is the third-person singular present tense of tukkeutua, an intransitive verb used for both physical blockages and metaphorical congestions. Common contexts include pipes, drains, or ventilation systems that gradually become obstructed, as well as traffic, queues, or digital networks that slow or halt due to congestion.

In terms of grammar, tukkeutua is an intransitive verb whose present tense form is tukkeutuu. The imperfect (past) form is tukkeutui. The past participle is tukkeutunut, used in perfect constructions with the auxiliary olla, for example “se on tukkeutunut” (it has become clogged) or “putkistot ovat tukkeutuneet.” The noun form tukkeutuminen denotes the process of becoming clogged, and the adjective tukkeutunut describes something that is blocked or congested (for example, tukkeutunut viemäri, a blocked drain).

Common usage includes both physical and abstract blockages. Examples: “Vesijohdot voivat tukkeutua ilman kunnossapitoa” (Water pipes can become clogged without maintenance) and “Liikenne tukkeutuu maanantaiaamuisin” (Traffic gets congested on Monday mornings). The term is often found in technical, journalistic, and everyday Finnish when describing malfunctioning infrastructure, maintenance needs, or delays caused by buildup or crowding.

Etymology traces tukkeutua to tukko or tukos, roots related to blockage or congestion, with tukkeutuminen forming the noun for the process and tukkeutunut as the past participle/adjective. Related terms include tukos (a blockage) and tukkeutunut (blocked, congested).