Synonyms of the word 
TERRIFYING → ALARMING - TERRIFIC
terrifying
- adj. Frightening or intimidating.
- adj. Of a formidable nature; terrific.
- v. present participle of terrify.
alarming
- v. present participle of alarm.
- adj. causing apprehension, fear or alarm; frightening.
terrific
- adj. (colloquial) Frighteningly good.
- adj. (colloquial) Astounding or awesome.
- adj. Terrifying; causing terror.
- adj. Frightful or very unpleasant.
- adj. (colloquial) Extraordinarily great or intense.
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