Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun heftiness

2 senses of heftiness

Sense 1
brawn, brawniness, muscle, muscularity, sinew, heftiness -- (possessing muscular strength)
       => strength -- (the property of being physically or mentally strong; "fatigue sapped his strength")

Sense 2
heft, heftiness, massiveness, ponderousness, ponderosity -- (the property of being large in mass)
       => heaviness, weightiness -- (the property of being comparatively great in weight; "the heaviness of lead")