[ weyt-lis ]
/ ˈweɪt lɪs /


being without apparent weight, as a freely falling body or a body acted upon by a force that neutralizes gravitation.

Nearby words

  1. weighted average,
  2. weighted mean,
  3. weightedly,
  4. weighting,
  5. weightism,
  6. weightlessly,
  7. weightlessness,
  8. weightlifter,
  9. weightlifting,
  10. weightman

Origin of weightless

First recorded in 1540–50; weight + -less

Related formsweight·less·ly, adverbweight·less·ness, noun

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for weightlessness

British Dictionary definitions for weightlessness


/ (ˈweɪtləs) /


(of a body) having no actual weight; a state in which an object has no actual weight (because it is in space and unaffected by gravitational attraction) or no apparent weight (because the gravitational attraction equals the centripetal force and the object is in free fall)
  1. (of economic activity) based on the supply of information and ideas rather than trade in physical goodsthe weightless economy
  2. (of a company) having very few physical assetsweightless dot.coms
Derived Formsweightlessness, 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

Word Origin and History for weightlessness



1884, from weight + -less + -ness.

Online Etymology Dictionary, © 2010 Douglas Harper