Noun to describe a person whether easy or not to be influenced by others

nouns single-word-requests

I am looking for a noun to describe whether a person is easy or not to be influenced by others. I think this noun should have the meaning of level in it.

For example, if I want to use a noun to describe whether a person has a huge impact on others, I can use the word "influence".

So, what is the right noun to describe the "to-be-influenced" level of a person.


impressionable/impressionability

e.g. Children usually have a higher impressionability than adults.

Related

"There is a difference between..." vs "there is the difference between..." is there a difference? [closed]
Combination 'and' with 'from'
unassigned vs non-assigned
Victim of and victim to [closed]
The Tenant of Wildfell Hall
Is "fighting" used as a gerund in this sentence?
reported speech backshift
Cabbage-hood meaning in the sentence
Word for a written portrait
I would like + please
What's the difference between "refer" and "recommend?"
"a dying Earth" or "the dying Earth"