From Longman Dictionary of Contemporary Englishunreconstructedun‧re‧con‧struct‧ed /ˌʌnriːkənˈstrʌktɪd/ adjective not changing your ideas even though many people think they are old-fashioned
Examples from the Corpus
unreconstructed• It was the unreconstructed Communists who continued in charge.• Not even the most unreconstructed Keynesian would ever claim that the General Theory was an easy read.• Among historical colleagues, Thatcherite Tories and unreconstructed Marxists alike are firmly snubbed.• Struggling with this recalcitrant material, the director, an unreconstructed romantic, slapped on the atmosphere with a lavish hand.• a group of unreconstructed Stalinists 