Synonyms of the word

grisly

• adj. Horrifyingly repellent; gruesome, terrifying.
• adv. (obsolete) In a horrible or terrible manner; in a terrifying way.

alarming

• v. present participle of alarm.
• adj. causing apprehension, fear or alarm; frightening.

ghastly

• adj. Like a ghost in appearance; death-like; pale; pallid; dismal.
• adj. Horrifyingly shocking.
• adj. Extremely bad.
• adv. In a ghastly manner.

grim

• adj. dismal and gloomy, cold and forbidding.
• adj. rigid and unrelenting.
• adj. ghastly or sinister.
• adj. (Britain, slang) disgusting; gross.

gruesome

• adj. repellently frightful and shocking; horrific or ghastly.

macabre

• adj. Representing or personifying death.
• adj. Obsessed with death or the gruesome.
• adj. Ghastly, shocking, terrifying.

sick

• adj. Having an urge to vomit.
• adj. (chiefly US) In poor health.
• adj. (colloquial) Mentally unstable, disturbed.
• adj. (colloquial) In bad taste.
• adj. Tired of or annoyed by something.
• adj. (slang) Very good, excellent, awesome, badass.
• adj. In poor condition.
• adj. (agriculture) Failing to sustain adequate harvests of crop, usually specified.
• n. Sick people in general as a group.
• n. (Britain, colloquial) vomit.
• v. To vomit.
• v. (obsolete, intransitive) To fall sick; to sicken.
• v. (rare) Alternative spelling of sic.