lighter-than-air

adjective

That is lighter than air, describing materials or aircraft.

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light
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Meanings

adjectivelighter-than-air (comparative form only)
  1. comparative onlyThat is lighter than air, describing materials or aircraft.

Synonyms & antonyms

adjectiverelating to a balloon or other aircraft that flies because it weighs less than the air it displaces

Similar
light
Also see
light

Synonym sets from Open English WordNet, CC BY 4.0.

Cite this entry
APA

lighter-than-air. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/lighter-than-air

MLA

“lighter-than-air.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/lighter-than-air. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “lighter-than-air,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/lighter-than-air.

Source: lighter-than-air on Wiktionary, CC BY-SA 4.0.