It could be called tenacity or bloody-mindedness.
character trait
If the two word phrase "character trait" is considered a single part of speech, it is a noun. Alternatively, one could call "trait" a noun and "character" a substantive adjective modifying "trait".
Charles character trait was Independence!
If the two word phrase "character trait" is considered a single part of speech, it is a noun. Alternatively, one could call "trait" a noun and "character" a substantive adjective modifying "trait".
A heritable character or genetic character
dominant trait?
Small fry
A recluse.
Many characteristics are need, but two of the most important would be determination and common sense (if you want to call that a character trait).
It is called an expressed trait.
a recessive trait
Andrew Packtor