Can Willingness noun be a countable noun? Why?

JgipuzkoaHello.

Can Willingness noun be a countable noun? Why?

Jesús María.

Welcome to the Forums.

It is an uncountable noun.

Can you say "a willingness"? You can't. An uncountable noun cannot be counted.

JgipuzkoaHello.

Can Willingness noun be a countable noun? Why?

Jesús María.

In general, 'ness' is a suffix that makes an adjective an abstract noun. These, then, cannot be countable. You will hear, however, "we thank you all for the many kindnesses you have shown during our time of grief". This isn't correct, in my opinion, [i

Well, wait, let's not answer too quickly. Certainly you can say "a willingness" -- IF you then qualify it with what type of willingness.

A willingness to succeed

A willingness to provide the necessary funds

etc.

However, you can't just say "He showed a willingness" unless you say what "he" was willing to do.

Grammar Geek
Well, wait, let's not answer too quickly. Certainly you can say "a willingness" -- IF you then qualify it with what type of willingness.

A willingness to succeed

A willingness to provide the necessary funds

etc.

However, you can't just say "He showed a willingness" unless you say what "he" was willing to d

Grammar Geek is right. The issue is not countable vs. uncountable. There are certain cases using a/an with uncountable nouns.
Especially with nouns referring to human emotions and mental activity, to limit their meanings in some way:
a good knowledge/education
a deep understanding of other perspectives
(148.6 "Practical English Usage", Michael Swan, Oxford)