The word Sleiziness is misspelled against Sleaziness, a noun meaning "Quality of being sleazy."
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Sleaziness has vowels 'ea' together mispronounced as 'ei'
Word contains consecutive vowels 'EA' in between alphabets sl & ziness is misspelled as 'EI'
Wrong Spelling:  sl-ei-ziness 
Correct Spelling:  sl-ea-ziness 
Find more wrongly spelled words of Sleaziness to spell it well.