massiveness

1 the quality or state of being very large the massiveness of the puppy's paws suggested that this would be a very large dog Synonyms enormity, enormousness, giantism, gigantism, hugeness, immenseness, magnitude, immensity, prodigiousness, vastitude, vastnessRelated Words bigness, extensiveness, greatness, largeness, sizableness, voluminousness, weightiness; awesomeness, grandness, stupendousness, tremendousness; boundlessness, limitlessness; ampleness, capaciousness, commodiousness, spaciousness; excessiveness, extravagance, extremeness, gaudiness, grandiosity, immoderacyNear Antonyms littleness, puniness, smallness; trivialityAntonyms diminutiveness, minuteness, tininess

2 the state or quality of being heavy I need something with sufficient massiveness to block the wheels so this car won't roll down the ramp Synonyms avoirdupois, heaviness, heftiness, weightiness, ponderousnessRelated Words overweight; solidity, solidness, substantiality, substantialness; bulk, bulkiness, hugeness; cumbersomenessNear Antonyms airiness, delicacy, ethereality, etherealness; flimsiness, fluffiness, insubstantiality, slightnessAntonyms lightness, weightlessness