1. in a way that involves danger or risk

Examples

• The mountain climbers were perilously close to the edge of the cliff.
• The company’s finances were perilously low after the market crash.
• She drove perilously fast through the winding mountain roads.
• The old bridge swayed perilously in the strong wind.
• The patient’s condition remained perilously unstable.
• They were perilously close to missing their flight.