Word family
(noun)
persistence
(adjective)
persistent
(verb)
persist
(adverb)
persistently
From Longman Dictionary of Contemporary Englishpersistentper‧sis‧tent /pəˈsɪstənt $ pər-/ ●○○AWL adjective1CONTINUOUS[usually before noun] continuing to exist or happen, especially for longer than is usual or desirable
persistent rumours
persistent headaches
a persistent problem
persistent rain2CONTINUOUScontinuing to do something, although this is difficult, or other people warn you not to do it
If she hadn’t been so persistent she might not have gotten the job.
persistent effortsPersistent offenders (=people who often break the law) face a prison sentence. —persistently adverb
persistently low rainfallExamples from the Corpuspersistent• He has a persistentcough because of his smoking.• The country has suffered from persistenteconomic problems.• persistentefforts to bring the warringfactions together• Not withstanding a cleardescription of the from / to challenge as well as persistentfeedback and discussion, Tom is stalled.• The U.S. tradedeficit has been a persistent problem.• This lack of involution results in so called calibrepersistent submucosal arteries.• The other, relatedmistake is the persistenttendency of Malthusians to underestimatehumaningenuity.• When added to the usual treatments for this condition it cleared up persistentulcers in 40 out of 60 cases.• It is Carney, though, deferential but persistent, who does most of the questioning.