weightlessness

From Wiktionary

Word parts[change]

weightless + -ness

Adjective[change]

Positive
weightlessness

Comparative
none

Superlative
none

Astronauts in weightlessness training
  1. Weightlessness is the feeling of having very little or no weight.
    Astronauts train for space flights in planes that make steep dives to create a sense of weightlessness.

Related words[change]