Difference between Terrible and Alarming

TERRIBLE vs ALARMING: ADJECTIVE

Causing alarm or fear
Exciting, or calculated to excite, alarm; causing apprehension of danger. -- A*larm"ing*ly, adv.
Causing apprehension, fear or alarm; frightening
Frightening because of an awareness of danger

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

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

Ghastly, Horrific, Dreadful, Terrifying, Chilling, Grim, Scary, Horrendous, Dire, Dismaying, Unnerving, Horrifying, Ominous, Appalling, Frightening

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

Ghastly, Horrific, Dreadful, Terrifying, Chilling, Grim, Scary, Horrendous, Dire, Dismaying, Unnerving, Horrifying, Ominous, Appalling, Frightening

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.

But for me, it is an alarming indicator.
Losing your child is actually a alarming prospect.
Online porn is growing at an alarming amount.
Google search also would have yielded alarming results.
Corso says conversion cases are the most alarming.
Budget data revealed an alarming state of affairs.
Other reports followed, still more emphatic and alarming.
This was very surprising and alarming to us.
It was alarming to suppose that that thing was perhaps dead; and still more alarming to think that it was perhaps alive.
Alarming as thmore alarming still are the transboundry economical dependencies they create.