Definitions of heftiness
  1. noun
    possessing muscular strength
    synonyms: brawn, brawniness, muscle, muscularity, sinew
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    type of:
    the property of being physically or mentally strong
  2. noun
    the property of being large in mass
    synonyms: heft, massiveness, ponderosity, ponderousness
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    type of:
    heaviness, weightiness
    the property of being comparatively great in weight
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