Insensitive (7)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">insensitive</span>' is the definition.<br/ ><span class="explanation-format__explanation">(similar in meaning)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for callous that I've seen before include "Cruel or unsympathetic" , "Emotionally hardened" , "Not feeling" , "Hard and unfeeling" , "Insensitive, cruel" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">insensitive</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for numb that I've seen before include "Unable to move" , "Insensate" , "Without feeling" , "Deaden" , "Stunned, insensible" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">insensitive</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for tactless that I've seen before include "Indiscreet" , "Without subtlety or sensitivity" , "Maladroit" , "Unlikely to make Diplomatic Service" , "Let's cast away, lacking sensitivity" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">insensitive</span>' is the definition.<br/ ><span class="explanation-format__explanation">(a crass comment might be insensitive)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for crass that I've seen before include "'Gross, vulgar (5)'" , "Tactless, boorish" , "Asinine" , "Boorish about scars" , "Coarse" .)