Impasive or Impassive: How To spell?
The word Impasive is misspelled against Impassive, meaning "unmoved feeling no sign of passion"
Impassive has double "ss" is mispronounced as "s"Remember double 'SS' in between the strings impa & ive which should not be misspelled with single 'S'
Wrong Spelling:  impa-s-ive  Correct Spelling:  impa-ss-ive 
Find more wrongly spelled words of Impassive to spell it well.