1. not occurring at regular intervals; irregular or random in timing
Usage: technical; mathematics; physics
2. having no repeating pattern or cycle
Usage: mathematics; signal processing

Examples

• The earthquake activity in the region was aperiodic, making it difficult to predict.
• Aperiodic signals contain no repeating waveforms.
• The scientist studied the aperiodic behavior of the chaotic system.
• Unlike a pendulum’s regular motion, the particle’s movement was aperiodic.
• The data showed aperiodic fluctuations with no discernible pattern.
• Aperiodic crystals lack the regular structure found in ordinary crystals.