The word Rebutable is misspelled against Rebuttable, an adjective meaning "Capable of being rebutted."
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Rebuttable has double "tt" is mispronounced as "t"
Remember double 'TT' in between the strings rebu & able which should not be misspelled with single 'T'
Wrong Spelling:  rebu-t-able 
Correct Spelling:  rebu-tt-able 
Check more misspelled words of Rebuttable to spell it correct.