A·larm, v. t. [imp. & p. p. Alarmed p. pr. & vb. n. Alarming.]
1. To call to arms for defense; to give notice to (any one) of approaching danger; to rouse to vigilance and action; to put on the alert.
2. To keep in excitement; to disturb.
3. To surprise with apprehension of danger; to fill with anxiety in regard to threatening evil; to excite with sudden fear.
Alarmed by rumors of military preparation. --Macaulay.
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A·larm·ing, a. Exciting, or calculated to excite, alarm; causing apprehension of danger; as, an alarming crisis or report. -- A*larm"ing*ly, adv.
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alarming
adj : causing alarm or fear [ant: unalarming]