The word Sarcasticaly is misspelled against Sarcastically, an adverb meaning "In a sarcastic manner."
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Sarcastically has double "ll" is mispronounced as "l"
Remember double 'LL' in between the strings sarcastica & y which should not be misspelled with single 'L'
Wrong Spelling:  sarcastica-l-y 
Correct Spelling:  sarcastica-ll-y 
Find more wrongly spelled words of Sarcastically to spell it well.