Word.ws English Dictionary

side effect

side effect noun: an unintended consequence, or secondary result, of any action, in addition to the main or intended consequence of that action.

Noun

side effect (plural side effects)

  1. An unintended consequence, or secondary result, of any action, in addition to the main or intended consequence of that action.
    • The processing of certain raw materials - pulp and paper, oil, and alumina, for example - can have substantial environmental side effects.1987, Brundtland Report
    • A side effect of this architecture (which was designed only for efficient fabrication) is that it also performs automated repair.1980, Advanced Automation for Space Missions
    Synonyms:
    by-product
    1. An unintended consequence of a drug or therapy; usually an adverse effect, and not a beneficial one.
      • “While all pharmaceutical treatments have side effects, racism is not a known side effect of any Sanofi medication.”2018 May 30, Christine Hauser, quoting Sanofi, “Roseanne Barr’s Ambien Defense Is Disputed: ‘Racism Is Not a Known Side Effect’”, in The New York Times, →ISSN
    2. A change a in state outside of the local environment of the function being called.
      • The Eiffel programming language is somewhat purist in insisting that functions have no side effects.

side effect meaning in Hindi, Tamil, Arabic and Indonesian

side effect in Hindi

unintended consequence of any action
दुष्प्रभाव duṣprabhāv
medicine: an adverse effect
दुष्प्रभाव duṣprabhāv

side effect in Tamil

பக்க விளைவு, பக்கப் பாதிப்பு, துணை விளைவு

side effect in Arabic

unintended consequence of any action
أَثَر جَانِبِيّ ʔaṯar jānibiyy

side effect in Indonesian

unintended consequence of any action
efek samping
More languagesFewer languages
side effect in Thai
ผลข้างเคียง pǒn-kâang-kiiang

Examples of side effect in a sentence

  • So you go along for a long time / And nothing seems to worry your mind / But what it adds up to / It's the side effect / That finally gets to you / It's the side effect / That finally gets to you1983, Ashford & Simpson, “Side Effect”, in High-Rise (album):
  • A positive side effect is that it may actually help with degenerative joint disease symptoms.2007, Sylvia Escott-Stump, Nutrition and Diagnosis-Related Care:

Synonyms of side effect

Forms of side effect

pluralside effects
alternative formside-effect

Words formed from side effect

Questions about side effect

What does side effect mean?
Side effect means an unintended consequence, or secondary result, of any action, in addition to the main or intended consequence of that action.
What is side effect in Hindi?
Side effect in Hindi is दुष्प्रभाव (duṣprabhāv). See Side effect meaning in Hindi.
How do you use side effect in a sentence?
So you go along for a long time / And nothing seems to worry your mind / But what it adds up to / It's the side effect / That finally gets to you / It's the side effect / That finally gets to you
What part of speech is side effect?
Side effect is a noun.
What is the plural of side effect?
The plural of side effect is side effects.

Words near side effect in the dictionary

  1. side dishes
  2. side door
  3. side doors
  4. side drum
  5. side drums
  6. side effect
  7. side effects
  8. side entrance
  9. side entrances
  10. side eye
  11. side eyed

Source and license

Adapted from Wiktionary: side effect (page history and authors); side effect (Tamil Wiktionary) (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Pronunciation audio from Wikimedia Commons, each file under its own free license: En-au-side effect.ogg.

Cite this entry: “side effect.” Word.ws, https://word.ws/side_effect. Based on Wiktionary, CC BY-SA 4.0.