The Collaborative International Dictionary of English v.0.48:
Torpidity \Tor*pid"i*ty\, n. Same as Torpidness. [1913 Webster]WordNet (r) 3.0 (2006):
torpidity n 1: a state of motor and mental inactivity with a partial suspension of sensibility; "he fell into a deep torpor" [syn: torpor, torpidity] 2: inactivity resulting from lethargy and lack of vigor or energy [syn: listlessness, torpidity, torpidness, torpor]