Definitions

1. adjective

causing or feeling fear; causing or expressing intense dislike or distaste

“The dreadful storm destroyed the entire neighborhood.”

2. adverb

to a great or considerable degree; very bad or unpleasant

“It was a dreadful cold that winter, with snow every day.”

3. noun

a feeling of fear or anxiety

“She felt a dreadful sense of foreboding as she approached the abandoned house.”