eagerness · noun U /ˈiː.gər.nəs/
eagerness
B2 when you are eager to do something
Dictionary example:
In their eagerness to find a solution, they have overlooked certain difficulties.
Learner example:
I really admire your stamina, your commitment and your eagerness to pursue a career as one of the youngest vice presidents ever in the company, but is it really worth it? (First Certificate in English; B2; Swedish)