Added 9 October 2026 self-doubt noun Categories: Feelings noun ! Definition from Wiktionary (CC BY-SA). More about self-doubt at Wordnik → Where our words come from → The doubting of one's own abilities. Related Words: self-distrustdiffidencedoubtdoubtingnessinsecurityself-dissatisfactiondoubtingself-possessionself-confidenceself-contemptself-discrimination Back to today's word