Entry 1 sense Webster, 1913 deconstructionist /(dē̇`kŭn*strŭk"shŭn*ĭst)/ · de·con·struc·tion·ist · IPA /diːkənˈstɹʌkʃənɪst/ 01 adj. Of or pertaining to deconstruction or deconstructionism; as, deconstructionist criticism. 1. Of or pertaining to deconstruction or deconstructionism; as, deconstructionist criticism.