The inferior feeling function occupies a distinctive and heavily theorized position within the depth-psychology corpus, commanding sustained attention from von Franz, Hillman, and Quenk, among others. As the fourth or ‘inferior’ function of the thinking-dominant type, it operates largely outside differentiated ego-control, surfacing in primitive, undifferentiated, and often destructive forms when constellated by stress, fatigue, or confrontation with relational demand. Von Franz establishes the foundational phenomenology: inferior feeling assigns wrong values, distorts self-judgment, and — in its introverted manifestation — engenders chronic feelings of personal inadequacy rooted not in objective circumstance but in the dysfunctional valuing apparatus itself. Hillman complements this by delineating the developmental trajectory of feeling as a function, emphasizing that oversubjectivity, misplaced emotional intensity, and the spoiling of genuine feeling-life are hallmarks of its undifferentiated state. Quenk translates these structural insights into typological case studies, mapping the grip experiences of ESTJ, ENTJ, INTP, and ISTP types when their inferior feeling erupts under pressure. The corpus also raises the question of integration: von Franz consistently argues that active imagination — especially somatic and kinesthetic modalities — constitutes the primary pathway through which the inferior feeling function can be approached without ego-inflation or regressive identification. The stakes are considerable: unassimilated inferior feeling underlies demagogic manipulation, neurotic self-distortion, and the rigidification of personality in the second half of life.