Ruthles or Ruthless: How To spell?
The word Ruthles is misspelled against Ruthless, an adjective meaning "Having no ruth; cruel; pitiless."
Ruthless 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:  ruthle-s  Correct Spelling:  ruthle-ss 
Check more misspelled words of Ruthless to spell it correct.