Search Result for "steepness": 
Wordnet 3.0

NOUN (1)

1. the property possessed by a slope that is very steep;
[syn: abruptness, precipitousness, steepness]



The Collaborative International Dictionary of English v.0.48:

Steepness \Steep"ness\, n.
   1. Quality or state of being steep; precipitous declivity;
      as, the steepnessof a hill or a roof.
      [1913 Webster]

   2. Height; loftiness. [Obs.] --Chapman.
      [1913 Webster]


WordNet (r) 3.0 (2006):

steepness
    n 1: the property possessed by a slope that is very steep [syn:
         abruptness, precipitousness, steepness] [ant:
         gentleness, gradualness]