Synonyms for Weightless:

• adj.

  •airy (adjective)
  • fragile,
  • rarest,
  • visionary.
  •all (adjective)
  • weightless.
  •buoyant (adjective)
  • most floatable,
  • un sinkable,
  • super natant,
  • most unsinkable,
  • super-natant,
  • more supernatant,
  • un-sinkable,
  • more unsinkable,
  • more floatable,
  • most supernatant.
  •light (adjective)
  • downy,
  • graceful,
  • feathery,
  • Gossamery,
  • flimsy,
  • lithe,
  • light-footed,
  • gossamer,
  • meager,
  • sylphlike,
  • atmospheric,
  • slender,
  • spongy,
  • easy,
  • featherweight,
  • sprightly,
  • petty,
  • trivial,
  • little,
  • porous,
  • unsubstantial,
  • delicate,
  • sandy,
  • loose,
  • unheavy,
  • tissuelike,
  • nimble,
  • dainty,
  • Imponderous,
  • crumbly,
  • agile,
  • thin,
  • lightest,
  • friable,
  • small,
  • trifling,
  • effervescent,
  • filmy,
  • slight,
  • floating,
  • inconsequential.
  •lightweight (adjective)
  • of no account.
  •Other relevant words: (adjective)
  • light,
  • Floatable,
  • unsinkable,
  • airy,
  • buoyant,
  • lightweight,
  • supernatant.
  •unsubstantial (adjective)
  • empty,
  • intangible,
  • unconcrete,
  • inessential,
  • phantasmal,
  • illusory,
  • nonexistence,
  • null,
  • apparitional,
  • immaterial,
  • impalpable,
  • tenuous,
  • chimerical,
  • vacuous,
  • unreal,
  • insignificance,
  • vacant,
  • spectral.

• n.

  •Other relevant words: (noun)
  • feather,
  • foamy,
  • lightness,
  • floaty,
  • portable,
  • fluffy,
  • ethereal,
  • insubstantial,
  • wispy,
  • sheer,
  • lather,
  • frothy.

• Other synonyms:

  •
  • dead weight,
  • dense,
  • light as a feather,
  • density,
  • nett,
  • load,
  • net,
  • counterweight.
  •Other relevant words (noun):
  • facile,
  • lightsome,
  • uncompressed,
  • sleazy,
  • astatic,
  • cheerful,
  • not difficult,
  • mousse,
  • soft,
  • featherlight,
  • vivid,
  • weightlessness,
  • Suberose,
  • bodiless,
  • lively,
  • mild,
  • venial,
  • gentle,
  • leger,
  • Unsolid,
  • feathered,
  • faint,
  • Imponderability,
  • weak,
  • Suberous,
  • Lifting,
  • sublimated,
  • Subtile,
  • souffle,
  • fair,
  • yeasty,
  • underweight,
  • bubbly,
  • lofty,
  • aerial,
  • volatile,
  • imponderable,
  • incorporeal,
  • flotation,
  • slim.

Antonyms for Weightless:

• adj.

  • all
    weighty.
  • light
    significant, important.
  • Other antonyms:
    whacking, sizable, hefty, massive, jumbo, bulky, handsome, huge, unwieldy, super, voluminous, king-size, oversize, great, big, large, heavy, extensive, ponderous, cumbersome, substantial, leaden, hulking, overweight, largish, goodly, considerable.