The word Sadening is misspelled against Saddening, which is present continuous of "Sadden"
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Saddening has double "dd" is mispronounced as "d"
Remember double 'DD' in between the strings Sa & ening which should not be misspelled with single 'D'
Wrong Spelling: Sa-d-ening
Correct Spelling: Sa-dd-ening
Find more wrongly spelled words of Saddening to spell it well.