Antitheticaly or Antithetically: How To spell?
The word Antitheticaly is misspelled against Antithetically, an adverb meaning "By way antithesis."
Antithetically has double "ll" is mispronounced as "l"Remember double 'LL' in between the strings antithetica & y which should not be misspelled with single 'L'
Wrong Spelling:  antithetica-l-y  Correct Spelling:  antithetica-ll-y 
Find more wrongly spelled words of Antithetically to spell it well.