fallout

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fallout

  • /ˈfɔːlaʊt/ UK
  • /ˈfɔlˌaʊt/ US

Where it comes from

Deverbal from fall out; fall + out.

noun fallouts

  1. countable, uncountable The event of small airborne particles falling to the ground in significant quantities as a result of major industrial activity, volcano eruption, sandstorm, nuclear explosion, etc. It was 5 February 2010 and Safdar had already dealt with the fallout of one explosion that day: an hour before, a motorbike laden with explosives had slammed into a bus carrying Shia Muslims to a religious procession.
  2. countable, uncountable The particles themselves. On 26 April 1986 the reactor number four at the Chernobyl Nuclear Power Plant located in the Soviet Union near Pripyat in Ukraine exploded. Further explosions and the resulting fire sent a plume of highly radioactive fallout into the atmosphere and over an extensive geographical area.
  3. countable, uncountable A negative side effect; an undesirable or unexpected consequence. Psychological fallout in the shadow of terrorism

    Similar: blowback, repercussions

  4. countable, rare, uncountable A declined offer in a sales transaction when acceptance was presumed.
  5. countable, rare, uncountable The person who declines such an offer.
  6. countable, uncountable An impromptu guest used to fill in for another guest spot who is a no-show or who has cancelled last minute.

Thesaurus

Closest in meaning: radioactive dust, precipitation, dust, dirt, rainfall, rain, radiation, leak, leakage, aftermath, bypass, spillover, side, fringe, outbreak, fall-out

Translations

Every language

noun event of airborne particles falling to the ground

Españollluvia, pluvia
한국어강하 gangha, 낙하 nakha
日本語降下 kōka, 落下 rakka
中文落下 luòxià, 下降 xiàjiàng
Portuguêsprecipitação
Françaisretombées
DeutschNiederschlag, Niedersinken, Niedergehen, Herabrieseln, Ascheregen
Italianopioggia
Ελληνικάπρόσπτωση prósptosi
Русскийоса́дки osádki, выпаде́ние vypadénije
עבריתנשורת neshóret

noun particles that fall to the ground

Españolceniza, poso
日本語落下物 rakkabutsu
中文落塵 /落尘 luòchén, 原子塵 /原子尘 yuánzǐchén, 落下物 luòxiàwù
DeutschFallout, radioaktiver Niederschlag, radioaktiver Staub, Asche, Explosionsstaub
Ελληνικάπροσπτώσεις prosptóseis, ραδιενεργή τέφρα radienergí téfra
Русскийоса́дки osádki

noun negative side effect

Españolefectos colaterales, secuelas, consecuencias, repercusiones, resultados
Françaisretombées, répercussions
Italianoripercussioni
Русскийнегати́вное после́дствие negatívnoje poslédstvije

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MLA

"fallout." Wiktionary, via Micwyn, micwyn.com/word/fallout. Accessed 6 Nov. 2026.

APA

fallout. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/fallout

Chicago

"fallout." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/fallout.

BibTeX
@misc{fallout_2026,
  title = {fallout},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/fallout},
  urldate = {2026-11-06}
}