Seasicknes or Seasickness: How To spell?
The word Seasicknes 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 double 'ss' in the end mispronounced as 's'Remember double 'SS' appears in the end of this word which should not be misspelled with single 'S'
Wrong Spelling:  seasickne-s  Correct Spelling:  seasickne-ss 
Find more wrongly spelled words of Seasickness to spell it well.