The word Unsiting is misspelled against Unsitting, an adjective meaning "Not sitting well; unbecoming."
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Unsitting has double "tt" is mispronounced as "t"
Remember double 'TT' in between the strings unsi & ing which should not be misspelled with single 'T'
Wrong Spelling:  unsi-t-ing 
Correct Spelling:  unsi-tt-ing 
Find more wrongly spelled words of Unsitting to spell it well.