One prone to sound or excite alarms particularly needless alarms
- an individual who alarms others needlessly
- One vulnerable to appear or excite alarms, especially, unnecessary alarms.
a person who is always jumping to conclusions or thinking the worst. Anyone is generally scared of anything bad happening for them.
"one addicted to sounding alarms," 1793, from security (n.) + -ist.
(n.) One susceptible to appear or stimulate alarms, particularly, unnecessary alarms.
The educated classes characteristically furnished Federalism with a remarkable body of alarmist leaders; and thus it happened that Jefferson, because, with only a few of his great contemporaries, he had a thorough trust and confidence in the people, became the idol of American democracy.