Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “weightless”

See all translations

weightless

adjective  /ˈweɪt·ləs/ us  

weightless adjective (NOT HEAVY)

being in a state in which gravity (= the force by which the earth attracts objects) does not cause movement of objects: The astronauts are weightless in space.
weightlessness
noun [U]  /ˈweɪt·lə·snəs/ us  
Then the rocket motor will shut down and passengers will experience the silence of space and the magic of weightlessness.
Translations of “weightless”
in Chinese (Traditional) 無重量的, 失重的, 似無重量的…
in Chinese (Simplified) 无重量的, 失重的, 似无重量的…
(Definition of weightless from the Cambridge Academic Content Dictionary © Cambridge University Press)
What is the pronunciation of weightless?
Add Cambridge dictionaries to your browser to your website

Definitions of “weightless” in other dictionaries

Word of the Day

illusion

an idea or belief that is not true

Word of the Day

Lies, lies, lies!

by Kate Woodford,
February 25, 2015
​​​ According to sociologists (=people who study the relationships between people living in groups), we are good at lying. As a species, we have developed a remarkable ability to deceive each other (= persuade each other that something false is true). Being able to say things that are not true can help with

Read More 

showrooming noun

February 23, 2015
the activity of examining a product in a physical store and then making the purchase with an online retailer Amazon’s new smartphone is specifically designed to make showrooming fast and easy.

Read More