English Etymology From self- + questioning. Noun self-questioning (plural self-questionings) The contemplation of one's actions, beliefs, etc. 2020 November 12, Chimamanda Ngozi Adichie, “Chimamanda Ngozi Adichie on Barack Obama's 'A Promised Land'”, in The New York Times:Obama’s thoughtfulness is obvious to anyone who has observed his political career, but in this book he lays himself open to self-questioning.Wikiwand - on Seamless Wikipedia browsing. On steroids.