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Adjective: alarming  u'laa(r)-ming
  1. Causing apprehension, fear or alarm; frightening
Verb: alarm  u'laa(r)m
  1. Fill with apprehension or alarm; cause to be unpleasantly surprised
    "I was alarmed at the thought of being late for my interview";
    - dismay, appal [Brit, Cdn], appall [US], horrify
     
  2. Warn or arouse to a sense of danger or call to a state of preparedness
    "The empty house alarmed him";
    - alert

See also: alarm, appalling, atrocious, awful, baleful, bloodcurdling, chilling, consternation, crawly, creepy, creepy-crawly, dire, direful, dismay, dismaying, doubtable [archaic], dread, dreaded, dreadful, fearful, fearsome, forbidding, formidable, frightening, frightful, ghastly, grim, grisly, gruesome, hair-raising, hairy, horrendous, horrible, horrific, horrifying, macabre, menacing, minacious, minatory, nightmarish, ominous, petrifying, redoubtable, scarey [non-standard], scary, shivery, shuddery, sick, sinister, spine-chilling, stupefying, terrible, terrific [archaic], terrifying, threatening, ugly, unnerving

Type of: affright, fright [archaic], frighten, scare, warn

Antonym: unalarming

Encyclopedia: Alarming

Alarm