Stepiness or Steepiness: How To spell?
The word Stepiness is misspelled against Steepiness, a noun meaning "Steepness."
Steepiness has double "ee" is mispronounced as "e"Remember double 'EE' in between the strings St & piness which should not be misspelled with single 'E'
Wrong Spelling:  St-e-piness  Correct Spelling:  St-ee-piness 
Find more wrongly spelled words of Steepiness to spell it well.