torpor
UK: ˈtɔːpə | US: ˈtɔːrpər
n. a state of physical or mental inactivity; lethargy
n. (biology) a dormant state with reduced metabolic activity, as in hibernation
The word "torpor" traces back to Latin torpēre, meaning "to be stiff, numb, or sluggish." This root reflects the physical and mental inertia associated with the term. In biology, it evolved to describe adaptive states of reduced activity (e.g., hibernation), retaining its core idea of suspended energy. The word entered English in the 17th century, preserving its original sense of dullness or dormancy.
After lunch, a wave of torpor made it hard to focus on work.
Bears enter a state of torpor during winter to conserve energy.
The heat induced a feeling of torpor in the entire village.
His torpor was mistaken for laziness, but it was actually depression.
The medication caused mental torpor, slowing her reaction time.