smartness
nounUK /ˈsmɑːtnəs/
US /ˈsmɑːrtnəs/
Smartness is how good you are at learning and figuring things out.
Her smartness helped her solve the puzzle quickly.
OTHER MEANINGS
2. The quality of looking neat and tidy.
He admired the smartness of her uniform.
3. The quality of being quick and sharp in movement or style.
The smartness of the horse's trot impressed the judges.
4. The quality of being fashionable and stylish.
The smartness of his suit made him stand out at the party.