The word Congenialnes is misspelled against Congenialness, a noun meaning "Congeniality."
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Congenialness has double 'ss' in the end mispronounced as 's'
Remember double 'SS' appears in the end of this word which should not be misspelled with single 'S'
Wrong Spelling:  congenialne-s 
Correct Spelling:  congenialne-ss 
Find more incorrect spellings of Congenialness to spell right way.