Unstable; in a situation that could be worsened by the slightest mistake. / Easily angered; having a short temper.

Alternative spelling of trigger-happy

a finger used in pulling the trigger of a firearm / the forefinger

To fire a gun. / (idiomatic) To commit to a course of action. / (soccer, idiomatic, intransitive) To shoot, kick the ball in hope of scoring a goal. / (tennis, informal) To hit a very powerful shot.

Alternative form of triggerman

(electronics) Describing a circuit or component which is either positive-edge-triggered or negative-edge-triggered.

(electronics) Describing a circuit or component whose output is sensitive to changes of the inputs only so long as the clock input's signal is high.

A notice placed before the beginning of media content (usually an online article, e-mail, or post) to warn of potential traumatic triggers it contains.

plural of trigger warning

The quality of being trigger-happy.