0 past simple and past participle of persist
1 If an unpleasant feeling or situation persists, it continues to exist:
The cold weather is set to persist throughout the week.
Despite this accumulation of evidence, the government persisted in doing nothing.
Within this context, legal proceedings in military courts and arrests of labor leaders, workers, and other pro-democracy activists persisted unabated.
The results persisted after adjustments for confounders (data not shown).
The results also revealed a sustained negative impact on later disruptive behavior that persisted long after the occurrence of grade retention.