persistent

Từ điển Oxford Advanced Learner 8th

per·sist·ent AW [persistent persistently] BrE [pəˈsɪstənt] NAmE [pərˈsɪstənt] adjective
1. determined to do sth despite difficulties, especially when other people are against you and think that you are being annoying or unreasonable
•How do you deal with persistent salesmen who won't take no for an answer?
•a persistent offender (= a person who continues to commit crimes after they have been caught and punished)
•She can be very persistent when she wants something.
2. continuing for a long period of time without interruption, or repeated frequently, especially in a way that is annoying and cannot be stopped
Syn: ↑unrelenting
•persistent rain
•a persistent cough
•I can't take much more of this persistent criticism.
•He resigned over persistent rumours of his affair with an actress.
•Famine is a persistent problem in many parts of the world.
Derived Word: ↑persistently

Example Bank:
•The weeds were very persistent.
•a stubbornly persistent unemployment problem
•Beware of these people's persistent sales techniques.
•Conflict is a common and persistent feature of society.
•Ear problems that are particularly painful or persistent should always be checked.
•He introduced a plan for dealing with persistent offenders.
•He resigned over persistent rumours of his part in the scandal.
•Persistent heavy rain held up work on the bridge for more than a week.
•Persistent pressure from the water authority forced the company to comply with the rules.
•Poor maths teaching was a persistent problem in schools.
•The most common symptom is a persistent cough.
•The problem of persistent shortages of food was turning into a crisis.
•There is a persistent tendency for wage costs to continue to rise.
•There were persistent reports of gross human rights abuses.

• Từ đồng nghĩa / Synonyms:
  dogged, dour, pertinacious, tenacious, unyielding, lasting, haunting, relentless, unrelenting
• Từ trái nghĩa / Antonyms:
  caducous, shed