unreconstructed
Longman Dictionary of Contemporary English 5++LDOCE 5++un·re·con·struct·ed /ˌʌnriːkənˈstrʌktɪd/ adjective not changing your ideas even though many people think they are old-fashioned 思想僵化的，顽固守旧的，坚持过时观点的
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 Stalinistsun·re·con·struct·ed adjectiveChineseSyllable
ideas your many Corpus even though changing think not they people
unreconstructed
un‧re‧con‧struct‧ed /ˌʌnriːkənˈstrʌktəd, ˌʌnriːkənˈstrʌktɪd/
adjective
not changing your ideas even though many people think they are old-fashioned
un‧re‧con‧struct‧ed /ˌʌnriːkənˈstrʌktəd, ˌʌnriːkənˈstrʌktɪd/
adjectivenot changing your ideas even though many people think they are old-fashioned