Fervently (10)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">fervently</span>' is the definition.<br/ ><span class="explanation-format__explanation">(thesaurus)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for vehemently that I've seen before include "with strong feeling" , "with force" , "Passionately, forcefully" , "Intensely, forcefully" .)
(Other definitions for like mad that I've seen before include "Furiously" , "With furious enthusiasm" , "wildly" , "With great intensity, energy, or enthusiasm" , "Very quickly" .)