Be apprehensive about synonyms

What is another word for Be apprehensive about?

• be afraid
• be scared
• be frightened of
• be fearful of
• fear
• be terrified of
• be nervous
• be anxious about
• be afraid of
• dread
• be scared of
• shudder at
• tremble at
• be terrified by
• have a horror of
• take fright at
• have a phobia about
• have qualms about
• live in dread of
• be in a blue funk about