not willing to use much of something
parsimony - stingy
The most common definition of a ‘parsimonious’ person is somebody who is highly reluctant to spend money. However, this formal word can also apply to a person unwilling to expend much of a particular resource. Tends to be seen more in a professional context.
Politicians can often be too parsimonious with the truth for many people’s tastes.
Our precarious financial position is the reason for our new-found parsimony.
I’m not saying that I want James to be careless with money, but his obstinate parsimoniousness is hindering the project.