Handsomeness
/ˈhænsəmnəs/
Definition 1 of 2
Pro Tip 1/3Gender Specific
Often used to describe male attractiveness, but can apply to anyone. 
Though less common, her handsomeness was the talk of the town.
Pro Tip 2/3Beyond Looks
May encompass charisma and style, rather than just physical features. 
His handsomeness wasn't just about his face, but how he held himself.
Pro Tip 3/3Not Just Positive
Can be used sarcastically or in a backhanded way. 
He used his handsomeness to charm, but his arrogance was off-putting.