Infertile (6)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">infertile</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for barren that I've seen before include "Unable to reproduce, infertile" , "Infertile, unproductive" , "Unable to bear fruit, not fertile" , "Sterile" , "Arid, infertile" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">infertile</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know that infertile can be written as sterile)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for sterile that I've seen before include "Not able to produce offspring" , "Incapable of reproducing" , "Not producing offspring" , "Unproductive" , "Antiseptic" .)