limpness       
noun [ U ] uk/ˈlɪmp.nəs/ us/ˈlɪmp.nəs/
 柔软;无力,软绵绵
the quality of being soft and neither firm nor stiff
  David ignored the sudden limpness of the hand he clasped. 大卫紧握的那只手突然变得柔软了,但他无视了这一点。 
 The body slid onto the ground with a horrible limpness. 身体软软的倒在了地上。 
 See: limp
 - More examples
 - I was surprised at the limpness of his handshake.
 - What I found most disappointing about the meal was the limpness of the French fries.
 - She was concerned about the child's sudden limpness.