I. dreadful adjective
Synonyms: fearful 3, appalling, awful, formidable, frightful, horrible, horrific, shocking, terrible, terrific
II. ||dreadful adverb
Synonyms: very 1, ||awful, awfully, ||big, damned, dreadfully, exceedingly, rattling, remarkably, strikingly
III. dreadful noun
Synonyms: dime novel , penny dreadful, shilling shocker, shocker, yellowback