Lighter-than-air

adj

adj ·Rare ·Advanced level

Definitions

Adjective
  1. 1
    That is lighter than air, describing materials or aircraft. comparative-only
Adjective
  1. 1
    relating to a balloon or other aircraft that flies because it weighs less than the air it displaces wordnet

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.