heftiness

Noun heftiness has 2 senses

• heftiness(n = noun.attribute) brawn, brawniness, muscle, muscularity, sinew - possessing muscular strength;
is a kind of strength

• heftiness(n = noun.attribute) heft, massiveness, ponderosity, ponderousness - the property of being large in mass;
is a kind of heaviness, weightiness
Derived forms adjective hefty₃, adjective hefty₂, adjective hefty₁