But all these adjectives express roughly the same degree of worry or fear and can therefore be used interchangeably to some extent. Frightened suggests more sudden fear: All small children are ...

No one knows what causes panic disorder ... Over time, many who suffer panic attacks develop an on-going fear of having another attack. This fear can severely hamper daily activities and overall ...

That is, unless you have an actual fear of flying, known as aviophobia. People with aviophobia have a deep-rooted, continual fear of flying that’s much more than a fleeting feeling of uneasiness.