Difference between Atrocious and Dreadful

ATROCIOUS vs DREADFUL: NOUN

That which is fearful or terrible: used only in the phrases penny dreadful, shilling dreadful, to denote a tale of vulgar sensationalism sold at a small price, or a cheap sensational newspaper or periodical.
A shocking or sensational crime.
A shocking or sensational report of a crime.

Very bad; execrable: as, an atrocious pun.
Very grievous; violent: as, atrocious distempers.
Manifesting or characterized by atrocity; extremely heinous, criminal, or cruel; enormously or outrageously wicked.

I. Full of dread or fear.
Full of respect, honor, or veneration.
Exciting or attended by great dread, fear, or terror; terrible; formidable; direful: as, a dreadful storm; a dreadful invasion.
Awful; venerable; awe-inspiring.
Synonyms Fearful, Frightful, etc. (see awful); terrific, horrible, horrid, dire, direful, tremendous.
Extremely disagreeable and unpleasant

Grievous, Alarming, Frightful, Wicked, Unspeakable, Monstrous, Horrifying, Heinous, Ugly, Bad, Awful, Terrible, Abominable, Horrible, Dreadful

Fearsome, Dreaded, Alarming, Painful, Unspeakable, Dire, Unpleasant, Frightening, Bad, Abominable, Horrific, Awful, Atrocious, Terrible, Horrendous

Grievous, Alarming, Frightful, Wicked, Unspeakable, Monstrous, Horrifying, Heinous, Ugly, Bad, Awful, Terrible, Abominable, Horrible, Dreadful

Fearsome, Dreaded, Alarming, Painful, Unspeakable, Dire, Unpleasant, Frightening, Bad, Abominable, Horrific, Awful, Atrocious, Terrible, Horrendous

Asda, absolutely dreadful, low alcohol and no taste.
It is both an encouraging and dreadful event.
Shiloh has been a dreadful blow to us.
It may have been that dreadful Queensway Cathedral.
Dreadful system and unfair on so many levels.
He has moved to somewhere that is dreadful.
She told Jury about the whole dreadful experience.
Attitude: It is dreadful to be in danger.
The old way is absolutely dreadful in comparison.
The emotion inspired by something dreadful and sublime; an undefined sense of the dreadful and the sublime; reverential fear, or solemn wonder; profound reverence.