1. lacking a regular, steady rhythm or pattern; characterized by irregular beats or timing
Usage: commonly used in medical contexts to describe irregular heartbeats; also used in music, dance, and general contexts to describe lack of rhythm

Examples

• The patient's arrhythmic heartbeat required immediate medical attention.
• The drummer's arrhythmic playing threw off the entire band.
• His arrhythmic breathing pattern concerned the doctor during the examination.
• The arrhythmic pulse of the music made it difficult to dance.
• Stress can sometimes cause arrhythmic heart rhythms in otherwise healthy people.
• The poet's arrhythmic verse created an unsettling, modern effect.