Moderately (6)
(Other definitions for fairly that I've seen before include "pretty" , "Evenhandedly" , "Equitably; passably" , "To a moderate degree" , "Rather" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">moderately</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for somewhat that I've seen before include "Rather, a little" , "To a certain extent" , "To an extent, a little" , "Moderately" , "up to a point" .)