The word Navseative is misspelled against Nauseative, an adjective meaning "Causing nausea; nauseous."
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Word contains consecutive vowels 'AU' in between alphabets n & seative is misspelled as 'AV'
Wrong Spelling:  n-av-seative 
Correct Spelling:  n-au-seative 
Find more wrongly spelled words of Nauseative to spell it well.