1. not continuing or lasting; temporary or short-lived
2. not remaining in the environment for a long time after application or release
Usage: environmental science; chemistry

Examples

• The nonpersistent cough disappeared after a few days of rest.
• Nonpersistent pesticides break down quickly in soil and water.
• The patient experienced only nonpersistent side effects from the medication.
• Scientists prefer nonpersistent chemicals that don’t accumulate in the food chain.
• The nonpersistent nature of the symptoms suggested a minor infection.
• This nonpersistent herbicide won’t harm beneficial insects for long.