Synonyms for Heftiness:

• n.

  •
  • heavy.
  •beef (noun)
  • robustnesses.
  •fatness (noun)
  • fatness,
  • rotundity,
  • pudginess,
  • adiposity,
  • tumidity,
  • stoutness,
  • distension,
  • bulkiness,
  • fleshiness,
  • distensions,
  • plumpness,
  • Portliness,
  • girth,
  • rotundities,
  • flab.
  •heaviness (noun)
  • density,
  • mass,
  • ponderousness,
  • ponderosity,
  • massiveness,
  • thickness,
  • denseness.
  •largeness (noun)
  • bigness.
  •weight (noun)
  • sub-stances,
  • gfactors,
  • g factor,
  • sub stance,
  • gfactor,
  • g factors,
  • g-factors,
  • sub-stance,
  • sub stances.

• Other synonyms:

  •
  • avoirdupois.
  •Other relevant words:
  • haft,
  • vigor,
  • tendon,
  • substantiality,
  • greatness,
  • healthiness,
  • tone,
  • musculature,
  • muscle,
  • energy,
  • voluminousness,
  • sturdiness,
  • overweight,
  • vim,
  • solidity,
  • muscleman,
  • elasticity,
  • vigour,
  • underweight,
  • deadweight,
  • net,
  • Brawniness,
  • brawn,
  • musculus,
  • thews,
  • gravity,
  • beefiness,
  • Muscularity,
  • voluntary muscle,
  • grandness.

Antonyms for Heftiness:

• n.

  • heaviness
    thinness.
  • Other antonyms:
    fluffiness, slightness, scarceness, scantiness, flimsiness, inadequacy, scarcity, lightness, inadequateness, delicacy, spareness, puniness, minuteness, smallness, poorness, insubstantiality, deficiency, slimness, slenderness, weightlessness, meagerness, sparsity, airiness, littleness, tininess, fineness, skimpiness, stinginess, sparseness, diminutiveness.