Certainly not! (2,3,4)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">certainly not</span>' is the definition.<br/ ><span class="explanation-format__explanation">(phrase used to express a denial or refusal)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for no fear that I've seen before include "Never" , "Absolutely not" , "Definitely not (sl.)" , "Not on your life, certainly not" , "Very clear Five ac [REFUSAL]" .)
(Another definition for no way jose that I've seen is " Absolutely not".)