Forcefulness is a related term of sturdiness.
As nouns the difference between forcefulness and sturdiness
is that forcefulness is the characteristic or quality of being forceful while sturdiness is the state or quality of being sturdy.
forcefulness
English
Noun
(-)
The characteristic or quality of being forceful
sturdiness
English
Noun
(-)
The state or quality of being sturdy.