exigent
/ɛksɪˈdʒɛnt/ EX-i-juhnt
Definitions
1. adjective
requiring or demanding great effort, skill, or expense; extremely demanding
“The project manager was known for being quite exigent, pushing the team to meet tight deadlines.”
2. noun
a person or thing that is extremely demanding
“The exigent client was difficult to please, constantly finding fault with the work.”