hebetative
/ˌhɛbɪˈteɪɪtɪv/Definitions
1. adjective
Lacking energy, vitality, or animation; dull; lifeless.
“The hebetative atmosphere in the room made everyone feel lethargic.”
2. noun
A state or quality of being hebetative.
“The doctor diagnosed her with a hebetative condition due to her medication side effects.”