Word.ws English Dictionary

moonless

moonless adjective: during which no phase of the Moon is visible to provide light, whether because of cloud cover or because of a new moon.

Adjective (1)

moonless (not comparable)

  1. During which no phase of the Moon is visible to provide light, whether because of cloud cover or because of a new moon.
    • And they played softly in the Aeolian mode a music that was like the wailing of wind through bare branches on a moonless night, and the Red Foliot leaned forth from his high seat and recited this lamentation: […]1922, E[ric] R[ücker] Eddison, The Worm Ouroboros: A Romance, London: Jonathan Cape […], →OCLC, page 31
    Antonyms:
    moonlit, moonful
  2. (informal) Having no natural satellite.

Adjective (2) capitalized: Moonless

Moonless (not comparable)

  1. Without the Moon.
    • We believe the Moon has been beneficial for the development of life here, but we do not know whether the Moon was necessary for life. Perhaps if we lived on a Moonless world we would be grateful we did not have one of those huge chunks of rock hanging so close to us in the sky.2002, Stephen Webb, “They Do Not Exist”, in If the Universe Is Teeming with Aliens … Where Is Everybody?: Fifty Solutions to the Fermi Paradox and the Problem of Extraterrestrial Life, Copernicus...
    • Presumably a Moonless world would still have had weather patterns, including rain, so erosion would have taken place but on a tiny scale compared with what happened when the Moon was so much closer to the Earth.2005, Christopher Knight, Alan Butler, Who Built the Moon?, Watkins Books, →ISBN

Antonyms of moonless

Origin of moonless

From moon + -less.

From Moon + -less.

Words formed from moonless

Questions about moonless

What does moonless mean?
Moonless means during which no phase of the Moon is visible to provide light, whether because of cloud cover or because of a new moon.
What part of speech is moonless?
Moonless is an adjective.

Words near moonless in the dictionary

  1. moonito
  2. moonitos
  3. moonj
  4. moonja
  5. moonjah
  6. moonless
  7. moonlessly
  8. moonlessness
  9. moonlet
  10. moonlets
  11. moonlight

Source and license

Adapted from Wiktionary: moonless (page history and authors); Moonless (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “moonless.” Word.ws, https://word.ws/moonless. Based on Wiktionary, CC BY-SA 4.0.