Inflexible (5)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">inflexible</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know that inflexible can be written as rigid)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for rigid that I've seen before include "Stiff, unyielding" , "Stiff, unbending" , "strict" , "unwilling to move" , "Unable to bend" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">inflexible</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 stiff that I've seen before include "Awkward" , "Not easily bent" , "tough" , "Formal" , "Starched, rigid" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">inflexible</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 obstinate that I've seen before include "Female bird" , "Firm" , "Inflexible" , "Blindly stubborn" , "Stubbornly persistent" .)
(Another definition for unbending that I've seen is " Rigid".)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">inflexible</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for rigorous that I've seen before include "Severe, precise" , "Rigid, stringent" , "Austere" , "Exhaustively accurate" , "Allowing no deviation from a standard" .)