slow down

verb

To decelerate.

“Whoa, slow down there, bucko. Everyone will get a chance. Be patient.”

Meanings

verbslow down (third-person singular simple present slows down, present participle slowing down, simple past and past participle slowed down)

present singular third person slows down · participle present slowing down · participle past slowed down · past slowed down

  1. intransitiveTo decelerate.

    When approaching a bend in the road, slow down, and speed up after leaving it.

    3 more examples

    Crossing stations on single lines are laid out so that one line has a straight run through, and is signalled in each direction, avoiding the need to slow down to take the turnout into the loop.

    1954 August, J. B. Snell, “The New Zealand Government Railways—2”, in Railway Magazine, page 562

    When the long, hot journey drew to its end and the train slowed down for the last time, there was a stir in Jessamy’s carriage.

    1967, Barbara Sleigh, Jessamy, Sevenoaks, Kent: Bloomsbury, published 1993, →ISBN, page 7

    Then came the war... and everything slowed down.

    2021 October 6, Greg Morse, “A need for speed and the drive for 125”, in RAIL, number 941, page 48

    Synonyms: slow up, decelerate, cumber, foreslow, put the brakes on, rein in, retard, slow

  2. transitiveTo reduce the velocity, speed, or tempo of something.

    With a comfortable lead, the football team slowed down the tempo of the game.

    4 more examples

    A "passenger/goods" cock is provided in each cab, by which, when placed in the "goods" position, the normal proportional brake application is slowed down. This is for use when hauling an unbraked or partially braked train, and prevents the unbraked stock from running into the locomotive or braked portion of the train with violence.

    1958 September 28, “Swindon's First Main-Line Diesel Locomotive”, in Railway Magazine, page 603

    Oh, run away / You better not hesitate / Better hurry, don't wait now / Run away / Before you find it's too late / 'Cause you know how love slows you down

    1977, Loleatta Holloway, “Runaway”, in Magic Journey

    A “moving platform” scheme[…]is more technologically ambitious than maglev trains even though it relies on conventional rails.[…]This set-up solves several problems […]. Stopping high-speed trains wastes energy and time, so why not simply slow them down enough for a moving platform to pull alongside?

    2013 June 1, “Ideas coming down the track”, in The Economist, volume 407, number 8838, page 13 (Technology Quarterly)

    The elimination of vacuum-braked wagons would be slowed down, and the Western Region's flirtation with diesel-hydraulic locomotives was questioned.

    2023 March 8, Howard Johnston, “Was Marples the real railway wrecker?”, in RAIL, number 978, page 52

    Synonyms: retard

  3. figurativelyintransitivetransitiveTo become less intense, enthusiastic, etc., usually with a positive connotation, implying that one is stripped of exaggerated or unnecessary eagerness.

    Whoa, slow down there, bucko. Everyone will get a chance. Be patient.

Synonyms & antonyms

verbTo reduce the velocity, speed, or tempo of something.

Similar

More synonyms by meaning

verblose velocity; move more slowly

verbbecome slow or slower

Broader

verbcause to proceed more slowly

verbreduce the speed of

Similar

verbbecome less tense, rest, or take one's ease

Broader
change stateturn

Synonym sets from Open English WordNet, CC BY 4.0.

Translations

Bulgarian забавям
  • забавям (zabavjam)(''transitive'') to reduce speed
Catalan alentir, descelerar
  • alentir(''transitive'') to reduce speed
  • descelerar(''transitive'') to reduce speed
Chinese Mandarin 減速 /减速, 放慢
  • 減速 /减速 (jiǎnsù)(''transitive'') to reduce speed
  • 放慢 (fàngmàn)(''transitive'') to reduce speed
Czech zpomalit
  • zpomalit(''transitive'') to reduce speed
Dutch afremmen
  • afremmen(''transitive'') to reduce speed
Finnish hidastaa
  • hidastaa(''transitive'') to reduce speed
French ralentir, décélérer
  • ralentir(''transitive'') to reduce speed
  • décélérer(''transitive'') to reduce speed
German verlangsamen
  • verlangsamen(''transitive'') to reduce speed
Greek επιβραδύνω
  • επιβραδύνω (epivradýno)(''transitive'') to reduce speed
Hungarian lassít, lelassít
  • lassít(''transitive'') to reduce speed
  • lelassít(''transitive'') to reduce speed
Italian rallentare, decelerare
  • rallentare(''transitive'') to reduce speed
  • decelerare(''transitive'') to reduce speed
Japanese 遅らせる
  • 遅らせる (okuraseru)(''transitive'') to reduce speed
Latin tardō, tardescō
  • tardō(''transitive'') to reduce speed
  • tardescō(''transitive'') to reduce speed
  • retardo(''transitive'') to reduce speed
Māori whakapūhoi
  • whakapūhoi(''transitive'') to reduce speed
Polish zwalniać, zwolnić
  • zwalniać(''intransitive'') to decelerate
  • zwolnić(''intransitive'') to decelerate
  • spowalniać(''intransitive'') to decelerate
  • spowolnić(''intransitive'') to decelerate
  • zwalniać(''transitive'') to reduce speed
  • zwolnić(''transitive'') to reduce speed
  • spowalniać(''transitive'') to reduce speed
  • spowolnić(''transitive'') to reduce speed
Portuguese desacelerar
  • desacelerar(''transitive'') to reduce speed
Romanian încetini, decelera
  • încetini(''transitive'') to reduce speed
  • decelera(''transitive'') to reduce speed
Russian замедля́ть, заме́длить
  • замедля́ть (zamedljátʹ)(''transitive'') to reduce speed
  • заме́длить (zamédlitʹ)(''transitive'') to reduce speed
  • снижа́ть ско́рость (snižátʹ skórostʹ)(''transitive'') to reduce speed
  • сни́зить ско́рость (snízitʹ skórostʹ)(''transitive'') to reduce speed
Spanish lentificarse, enlentecerse
  • lentificarse(''intransitive'') to decelerate
  • enlentecerse(''intransitive'') to decelerate
  • ralentizarse(''intransitive'') to decelerate
  • ir/andar más despacio(''intransitive'') to decelerate
  • reducir/aminorar/disminuir la velocidad/rapidez(''intransitive'') to decelerate
  • lentificar(''transitive'') to reduce speed
  • enlentecer(''transitive'') to reduce speed
  • ralentizar(''transitive'') to reduce speed
Swedish sakta, bromsa
  • sakta(''transitive'') to reduce speed
  • bromsa(''transitive'') to reduce speed
Tagalog bumagal
  • bumagal(''transitive'') to reduce speed
Turkish yavaşlamak
  • yavaşlamak(''transitive'') to reduce speed
Ukrainian упові́льнювати, упові́льнити
  • упові́льнювати (upovílʹnjuvaty)(''transitive'') to reduce speed
  • упові́льнити (upovílʹnyty)(''transitive'') to reduce speed
  • спові́льнювати (spovílʹnjuvaty)(''transitive'') to reduce speed
  • спові́льнити (spovílʹnyty)(''transitive'') to reduce speed
Welsh arafu, slofi
  • arafu(''transitive'') to reduce speed
  • slofi(''transitive'') to reduce speed
Cite this entry
APA

slow down. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/slow%20down

MLA

“slow down.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/slow%20down. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “slow down,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/slow%20down.

Source: slow down on Wiktionary, CC BY-SA 4.0.