TORPOR
listlessness, torpidity, torpidness, torpor
(noun) inactivity resulting from lethargy and lack of vigor or energy
torpor, torpidity
(noun) a state of motor and mental inactivity with a partial suspension of sensibility; “he fell into a deep torpor”
Source: WordNet® 3.1
Etymology
Noun
torpor (countable and uncountable, plural torpors)
A state of being inactive or stuporous.
A state of apathy or lethargy.
Synonyms: lethargy, sluggishness, languor, torpidity
(biology) A state similar to hibernation characterised by energy-conserving, very deep sleep.
Source: Wiktionary
Tor"por, n. Etym: [L., from torpere, to be torpid.]
1. Loss of motion, or of the motion; a state of inactivity with
partial or total insensibility; numbness.
2. Dullness; sluggishness; inactivity; as, a torpor of the mental
faculties.
Source: Webster’s Unabridged Dictionary 1913 Edition