misdoubtPronunciation: /mɪsˈdaʊt/Definition of misdoubt verb [with object] 1 archaic or dialect have doubts about the truth, reality, or existence of:he always misdoubted his own ability 2fear or be suspicious about:for I fear my father, and I misdoubt his hindrancesmisdoubt in other Oxford dictionaries Definition of misdoubt in the US English dictionary