• Listen

  What it means

  Literally “a side effect,” this is an unintended or secondary consequence that comes with the main action or result. The phrase is used in medicine, science, law, and everyday conversation. It can refer to negative or neutral results: a medicine may cause dizziness as an “efekt uboczny,” while a new road may boost local tourism. The key point is that the consequence is still secondary, rather than something intended, planned, or deliberately sought by anyone from the start.

  Vocabulary

  • efekt — effect, result, outcome
  • uboczny — side, incidental, secondary, by-the-way
  • ubocze — side, fringe, byway (noun from which uboczny derives)
  • skutek uboczny — side effect (near-synonym, often interchangeable)
  • niepożądany — undesired, unwanted (common collocate: efekt uboczny niepożądany)

  Grammar note

  "Uboczny" is a masculine singular nominative adjective that modifies "efekt." It declines to agree with the noun: genitive "efektu ubocznego," accusative "efekt uboczny," instrumental "efektem ubocznym." Polish has two near-synonyms: "efekt uboczny" and "skutek uboczny." Both mean side effect and are used in medicine and science, though "skutek" is slightly more common in formal writing.

  Cultural context

  The phrase is neutral in register and is often used in medical brochures and casual chat. In Polish medicine and pharmacy, it appears in patient leaflets under "działania niepożądane" (undesired effects), while "efekt uboczny" is the more everyday version in ordinary speech. Outside medicine, it often appears in jokes: "Efektem ubocznym tej diety było to, że zaczęłam gotować" (A side effect of this diet was that I started cooking).

  Beginner

Noticed a typo, a wrong translation, or anything that doesn't look right? We'd love to fix it — just let us know via the contact page. Thank you!