Synonyms for lighter-than-air

Synonyms for (adjective) lighter-than-air

Synonyms: lighter-than-air

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

Similar words: light

Definition: of comparatively little physical weight or density

Usage: a light load; magnesium is a light metal--having a specific gravity of 1.74 at 20 degrees C