What are some descriptive words for fear?

You can say:

Trepidation

Nervous

Dread/dreadful

Fear

terror

Scary

Creeps

Quickened Breath

Blood Run cold

Cold Sweat

Bone Shivering

Shocked

Nightmare

Fear

Anxious

Faint

alarm

Anxiety

Apprehension

Frighten

Dismay

Distress

horrid

Horrible

Goose bumps

Scare to death

Dark

Evil

Creepy