Horendous or Horrendous: How To spell?
The word Horendous is misspelled against Horrendous, an adjective meaning "Fearful; frightful."
Horrendous has double "rr" is mispronounced as "r"Remember double 'RR' in between the strings ho & endous which should not be misspelled with single 'R'
Wrong Spelling:  ho-r-endous  Correct Spelling:  ho-rr-endous 
Check more misspelled words of Horrendous to spell it correct.