Be unconvinced about synonyms

What is another word for Be unconvinced about?

• distrust
• disbelieve
• be sceptical of
• have doubts about
• doubt
• be unsure about
• be unsure of
• take with a grain of salt
• take with a pinch of salt
• not believe
• not credit
• give no credence to
• discredit
• discount
• mistrust
• be suspicious of
• have no confidence in
• have no faith in
• be incredulous of