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Weightlessness vs Heaviness - What's the difference?

weightlessness | heaviness |

As nouns the difference between weightlessness and heaviness

is that weightlessness is (uncountable) the state of being free from the effects of gravity while heaviness is the state of being heavy; weight, weightiness, force of impact or gravity.

weightlessness

English

(wikipedia weightlessness)

Noun

  • (uncountable) The state of being free from the effects of gravity.
  • (countable) An experience or instance of being weightless.

    • Usage notes

    *Ambiguous:1. being free from any gravity 2. being stress free * Plural is rare.

    Synonyms

    * zero-g

    heaviness

    English

    Noun

  • The state of being heavy; weight, weightiness, force of impact or gravity.
  • (obsolete) Oppression; dejectedness, sadness.
  • *1590 , Edmund Spenser, The Faerie Queene , II.vii:
  • *:First got with guile, and then preseru'd with dread, / And after spent with pride and lauishnesse, / Leauing behind them griefe and heauinesse .