Dictionary
ex•act•ing
Pronunciation: (ig-zak'ting), [key]—
adj.
1. rigid or severe in demands or requirements:
an exacting teacher.
2. requiring close application or attention:
an exacting task.
3. given to or characterized by exaction; extortionate.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.