alarm Synonyms

consternation dismay alarum appall apprehension alert trepidation horrify appal disquiet affright terror fright unstring unsettle unnerve uneasiness unease ultimatum upset warn warning consternate tip off bell buoy disquietude yelper worry worrit worriment wigwag whistle watchtower turnip trumpet trouble spook solicitude siren signal shrieker shock rattle semaphore scarify scare ringer stampede startle trepidity