Word.ws English Dictionary

Past tense of slacken

regular verb

The past tense of slacken is slackened. The past participle is also slackened.

Forms of slacken

Base form (V1)slacken /ˈslæ.kən/
Past tense (V2)slackened
Past participle (V3)slackened
Present participleslackening
Third person singularslackens

Slackened in a sentence

  • The pace slackened.
  • At last, when the tribute slackened, he motioned to his retainers to sweep up the treasure.1984, John Henry Cary, Julius Weinberg, The Social Fabric: American life from 1607 to 1877. From the entry Kleagle
  • For two terms I slackened and had bad reports.1911, H.G. Wells, The Door in the Wall. From the entry woolgather
  • The speed of the chargers slackened.1913, Edgar Rice Burroughs, The Return of Tarzan, New York: Ballantine Books, published 1963, page 135. From the entry charger
  • Professor Postan has argued in favour of a rapid move towards commutation in the twelfth century which slackened or even went into reverse in the course of the thirteenth.1969, Philip Ziegler, The Black Death, Folio Society, published 2006, page 213. From the entry commutation

Meaning of slacken

  1. verb To gradually decrease in intensity or tautness; to become slack; to lag.
  2. verb To make slack, less taut, or less intense.
  3. verb To deprive of cohesion by combining chemically with water; to slake.

Full definition of slacken

Questions about the past tense of slacken

What is the past tense of slacken?
The past tense of slacken is slackened.
What is the past participle of slacken?
The past participle of slacken is slackened.
Is slacken a regular or irregular verb?
Slacken is a regular verb: its past tense adds -ed.

Source and license

Adapted from Wiktionary: slacken (page history and authors) and the entries of its forms. Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws left out forms marked obsolete, archaic, rare or dialectal and added the examples. Wiktionary data of 2026-09-02.

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Cite this page: “Past tense of slacken.” Word.ws, https://word.ws/past-tense/slacken. Based on Wiktionary, CC BY-SA 4.0.