Difference between Terrible and Frightful

TERRIBLE vs FRIGHTFUL: ADJECTIVE

Synonyms Terrific, fearful, frightful, horrible, shocking, dire.
Excessive; tremendous; severe; great: chiefly used colloquially: as, a terrible bore.
That excites or is fitted to excite terror, fear, awe, or dread; awful; dreadful; formidable.

Synonyms Dreadful, Fearful, etc. (see awful); alarming, terrific, horrible, shocking.
Full of terror; fearful; alarmed.
Intolerable; shocking; hideous.
Full of occasion for fright; causing or apt to excite alarm or terror; terrible; dreadful: as, a frightful chasm; a frightful tempest.

Alarming, Severe, Dire, Wicked, Frightful, Painful, Frightening, Abominable, Unspeakable, Horrific, Bad, Atrocious, Awful, Dreadful, Horrendous

Dreadful, Scary, Hideous, Frightening, Ghastly, Terrifying, Extraordinary, Alarming, Fearful, Atrocious, Bad, Ugly, Horrible, Terrible, Horrifying

Alarming, Severe, Dire, Wicked, Frightful, Painful, Frightening, Abominable, Unspeakable, Horrific, Bad, Atrocious, Awful, Dreadful, Horrendous

Dreadful, Scary, Hideous, Frightening, Ghastly, Terrifying, Extraordinary, Alarming, Fearful, Atrocious, Bad, Ugly, Horrible, Terrible, Horrifying

Artist and you alsina testimony first week sales are terrible in the sales are terrible in your opinion back on his first week.
Will something terrible happen in there or will something terrible happen if they refuse to go in?
The death close before me was terrible, but far more terrible than death was the dread of being misremembered after death.
If half your work is great, and half is terrible, we assume that you did the terrible half.
Such a terrible mess I dont know what happened to you ex DAUM guys but this service you provide to players is absolutely terrible.
The law has always recognized a distinction between a terrible act and an attempted terrible act.
If you can only pull through with that terrible cold and that terrible cough.
Having suffered a terrible divorce and terrible breakup soon after, Elizabeth was shattered.
Terrible lender and now terrible credit card provider!
Terrible jokes aside, this program is far from terrible.

And this issue can come on with frightful frequency.
Brown, Horrible Histories: The Frightful First World War, pg.
Frightful First Experiments kit has lots to satisfy curiosity.
What frightful errors are contained in those few lines!
You seem gasping with horror at some frightful supposition.
Tauros a frightful powerhouse to be reckoned with.
Horror series reboot thrills with tense, frightful story.
"How beautiful by contrast with this frightful forest.".
Multiattack: The dracolich can use its Frightful Presence.
The Old Testament tells us the frightful things that God has done, the New the frightful things that he will do.