At the same time his rule, if not harsh, was enervating and demoralizing.
I hope to be a friend that is encouraging, not enervating.
Although enervating, the climate of Siam, as is natural from the position of the country, is not one of extremes.
The first week of classes was enervating to the new students.
Warm, sunny days can be very pleasant to relax, but also very enervating.