alarm

Synonyms: anxiety apprehension cold feet consternation dismay distress dread fright horror nervousness panic scare strain stress tension terror trepidation unease uneasiness

Antonyms: assurance calmness composure confidence peace quietness repose security

Synonyms: alert bell blast buzzer call caution clock cry drum flap flash forewarning gong high sign horn mayday nod scramble scream shout sign signal siren sos squeal tip tip off tocsin trumpet warning whistle wink yell

Synonyms: amaze astonish chill daunt dismay distress frighten give a turn make jump panic scare scare silly scare stiff scare to death spook startle surprise terrify unnerve

Antonyms: assure calm gladden reassure repose soothe