When we describe someone as "supposedly self-confident", we may want to look for alternative words that can convey the same idea in a more precise or nuanced manner. Synonyms for "supposedly self-confident" can vary depending on the context and tone of the description. Some possibilities include: - Ostensibly self-assured: This suggests that the person appears outwardly confident, but there may be doubts or insecurities lurking beneath the surface. - Allegedly self-reliant: This implies that the person is said to be independent and capable, but there may be questions about whether they truly possess these qualities. - Presumably bold: This suggests that the person is believed to be fearless or daring, but there may be some uncertainty about whether this is really the case.