Seisickness or Seasickness: How To spell?
The word Seisickness is misspelled against Seasickness, a noun meaning "The peculiar sickness, characterized by nausea and prostration, which is caused by the pitching or rolling of a vessel."
Seasickness has vowels 'ea' together mispronounced as 'ei'Word contains consecutive vowels 'EA' in between alphabets s & sickness is misspelled as 'EI'
Wrong Spelling:  s-ei-sickness  Correct Spelling:  s-ea-sickness 
Find more wrongly spelled words of Seasickness to spell it well.