Anihilatory or Annihilatory: How To spell?
The word Anihilatory is misspelled against Annihilatory, an adjective meaning "Annihilative."
Annihilatory has double "nn" is mispronounced as "n"Remember double 'NN' in between the strings a & ihilatory which should not be misspelled with single 'N'
Wrong Spelling:  a-n-ihilatory  Correct Spelling:  a-nn-ihilatory 
Find more incorrect spellings of Annihilatory to spell right way.