Unexpresible or Unexpressible: How To spell?
The word Unexpresible is misspelled against Unexpressible, an adjective meaning "Inexpressible."
Unexpressible has double "ss" is mispronounced as "s"Remember double 'SS' in between the strings unexpre & ible which should not be misspelled with single 'S'
Wrong Spelling:  unexpre-s-ible  Correct Spelling:  unexpre-ss-ible 
Find more wrongly spelled words of Unexpressible to spell it well.