dreadful

dreadful is an   Adverb

Definition:

[1] Full of dread or terror; fearful. [Obs.] "With dreadful heart." Chaucer.

[2] Inspiring dread; impressing great fear; fearful; terrible; as, a dreadful storm. " Dreadful gloom." Milton. For all things are less dreadful than they seem. Wordsworth.

[3] Inspiring awe or reverence; awful. [Obs.] "God`s dreadful law." Shak.

Synonyms: