1. Experiencing a sudden sense of danger
   "The hikers were alarmed by the sound of a growling bear"
    
2. Having an alarm fitted
   "This door is alarmed"

1. Warn or arouse to a sense of danger or call to a state of preparedness
   "The empty house alarmed him";
   - alert
    
2. 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
    
3. To equip with an alarm system
   "We alarmed all the doors and windows"

See also: afeard [archaic], afeared [archaic], afraid, 'fraid [non-standard]

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

Encyclopedia: Alarmed