[ sluhg-ish ]
See synonyms for: sluggishsluggishlysluggishness on

  1. indisposed to action or exertion; lacking in energy; lazy; indolent: a sluggish disposition.

  2. not acting or working with full vigor, as bodily organs: a sluggish liver.

  1. slow to act or respond: a sluggish car engine.

  2. moving slowly, or having little motion, as a stream.

  3. slow, as motion.

  4. slack, as trade, business, or sales.

Origin of sluggish

First recorded in 1400–50, sluggish is from the late Middle English word slugissh. See slug1, -ish1

synonym study For sluggish

1. See inactive.

Other words for sluggish

Opposites for sluggish

Other words from sluggish

  • slug·gish·ly, adverb
  • slug·gish·ness, noun
  • un·slug·gish, adjective
  • un·slug·gish·ly, adverb
  • un·slug·gish·ness, noun

Words Nearby sluggish Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use sluggish in a sentence

British Dictionary definitions for sluggish


/ (ˈslʌɡɪʃ) /

  1. lacking energy; inactive; slow-moving

  2. functioning at below normal rate or level

  1. exhibiting poor response to stimulation

Derived forms of sluggish

  • sluggishly, adverb
  • sluggishness, noun

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012