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