The word Disdunous is misspelled against Disdainous, an adjective meaning "Disdainful."
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Word contains consecutive vowels 'AI' in between alphabets disd & nous is misspelled as 'U'
Wrong Spelling:  disd-u-nous 
Correct Spelling:  disd-ai-nous 
Check more misspelled words of Disdainous to spell it correct.