fearful
Definitions
Feeling or showing fear or anxiety.
Causing or likely to cause fear; frightening.
Very great or intense, often used to emphasize a negative quality.
Examples
The fearful child hid behind his mother when the thunder began to rumble.
She was fearful that she might lose her job if she spoke up about the safety issues.
Synonyms
afraid scared terrified timid anxious apprehensive frightened