What's the plural form of frailness? Here's the word you're looking for.
Answer
The noun frailness can be countable or uncountable.
In more general, commonly used, contexts, the plural form will also be frailness.
However, in more specific contexts, the plural form can also be frailnesses e.g. in reference to various types of frailnesses
or a collection of frailnesses.
Despite his visible frailness, Michael's repeated message – appropriate to the season and his position in front of a Christmas tree – was of joy.
To those who met him from at least the 1960s onward, he already appeared a frail individual, but his frailness belied his determination and toughness.
In such a situation, one may say that hip fracture often is an epiphenomenon that is more related to the extreme frailness of the elderly than to being a real disease.
Amara studied the woman, her ancient yet wise face, the frailness of her limbs contradicting the underlying strength embedded in them.
Taking a deep breath, he began, the frailness of his voice alarming him.
Manned missions generally accelerate no faster than 1.2 gravities due to the frailness of their cargo.