What's the difference between persistent and relentless?

Persistent


Definition:

  • (a.) Inclined to persist; having staying qualities; tenacious of position or purpose.
  • (a.) Remaining beyond the period when parts of the same kind sometimes fall off or are absorbed; permanent; as, persistent teeth or gills; a persistent calyx; -- opposed to deciduous, and caducous.

Example Sentences:

  • (1) Without medication atypical ventricular tachycardia develops, in the author's opinion, most probably when bradycardia has persisted for a prolonged period.
  • (2) If the method was taken into routine use in a diagnostic laboratory, the persistence of reverse passive haemagglutination reactions would enable grouping results to be checked for quality control purposes.
  • (3) We considered the days of the disease and the persistence of symptoms since the admission as peculiar parameters between the two groups.
  • (4) The remaining case had a calibre persistent submucosal artery within the caecum that was found incidentally in a resection specimen.
  • (5) The difference in HDL and HDL2 cholesterol concentrations between the MI+ and MI- groups or between the MI+ and CHD- groups persisted after adjustment by analysis of covariance for the effect of physical activity, alcohol intake, obesity, duration of diabetes, and glycemic control.
  • (6) Since the advance and return of sperm inside the tubes could facilitate the interaction of sperm with secretions participating in its maturation, the persistent infertility after vasectomy could be related to the contractile alteration that follows the excessive tubal distention.
  • (7) An experimental Anaplasma marginale infection was induced in a splenectomized mule deer (Odocoileus hemionus hemionus) which persisted subclinically at least 376 days as detected by subinoculation into susceptible cattle.
  • (8) TR was classified as follows: severe (massive systolic opacification and persistence of the microbubbles in the IVC for at least 20 seconds); moderate (moderate systolic opacification lasting less than 20 seconds); mild (slight systolic opacification lasting less than 10 seconds); insignificant TR (sporadic appearance of the contrast medium into the IVC).
  • (9) They had learned through hard experience what Frederick Douglass once taught -- that freedom is not given, it must be won, through struggle and discipline, persistence and faith.
  • (10) Short incubations with heparin (5 min) caused a release of the enzyme into the media, while longer incubations caused a 2-8-fold increase in net lipoprotein lipase secretion which was maximal after 2-16 h depending on cell type, and persisted for 24 h. The effect of heparin was dose-dependent and specific (it was not duplicated by other glycosaminoglycans).
  • (11) The first patient, an 82-year-old woman, developed a WPW syndrome suggesting posterior right ventricular preexcitation, a pattern which persisted for four months until her death.
  • (12) But not only did it post a larger loss than expected, Amazon also projected 7% to 18% revenue growth over the busiest shopping period of the year, a far cry from the 20%-plus pace that had convinced investors to overlook its persistent lack of profit in the past.
  • (13) Channel activation persists through the process of platelet isolation and washing and is manifested in higher measured values of [Ca2+]cyt and [Ca2+]dt in the "resting state."
  • (14) Gastro-intestinal surgery is only indicated if haemorrhage persists after a period of observation.
  • (15) Psychiatric morbidity is further increased when adjuvant chemotherapy is used and when treatment results in persistent arm pain and swelling.
  • (16) A newborn presenting with persistent umbilical stump bleeding should be screened for factor XIII deficiency when routine coagulation tests prove normal.
  • (17) This competence persists over the eight measurement points.
  • (18) To investigate the possibility that an abnormality of gastric emptying exists in duodenal ulcer and to determine if such an abnormality persists after ulcer healing, scintigraphic gastric emptying measurements were undertaken in 16 duodenal ulcer patients before, during, and after therapy with cimetidine; in 12 patients with pernicious anemia, and in 12 control subjects.
  • (19) Thus it appears that a portion of the adaptation to prolonged and intense endurance training that is responsible for the higher lactate threshold in the trained state persists for a long time (greater than 85 days) after training is stopped.
  • (20) persisted and was more abnormal in 23% of the cases including specific tracings in 37%.

Relentless


Definition:

  • (a.) Unmoved by appeals for sympathy or forgiveness; insensible to the distresses of others; destitute of tenderness; unrelenting; unyielding; unpitying; as, a prey to relentless despotism.

Example Sentences:

  • (1) That is why you will be held relentlessly to account for those choices; why what you said in February invites forensic scrutiny.
  • (2) The history of events at the end of 2010, from the moment on 4 November when Cable called in the regulators, shows how relentlessly James Murdoch and his PR man Frédéric Michel lobbied and berated the politicians who were trying to stand in their way.
  • (3) It is the combination of his company's pan-African and industrialist vision – reminiscent of the aspirations of African independence pioneers like Ghana's Kwame Nkrumah – and its relentless financial growth that has set Dangote apart.
  • (4) Los Angeles were relentless in their vicious pursuit of a game-tying goal on Wednesday, bidding to send Game 4 into overtime.
  • (5) While none of the fears that have rattled markets are yet realised, the relentless focus on possible risks will likely see another soggy Asia-Pacific trading session.
  • (6) But when he decided to teach you a lesson, he was relentless, and he took no prisoners.
  • (7) A handful of the global superstars – Usain Bolt and now Mo Farah – have enhanced their personal value, but most have driven themselves relentlessly for the glory alone.
  • (8) The pressure from Fulham became relentless and in the 66th minute West Ham's defences burst.
  • (9) The last few months have seen the former secretary of state dogged by a relentless focus over her use of a private email server , dipping favorabillity numbers and the rise of Bernie Sanders, the socialist senator who is challenging her for the Democratic party’s nomination.
  • (10) The competition has dozens of star players, almost all the most famous managers, and creates enough drama to feed a relentless media appetite.
  • (11) The story of the past 30 years has been the relentless hollowing-out of industrial Britain, the single biggest change to the British economy in the postwar era.
  • (12) Medication, splintage, and physiotherapy are useful in helping to suppress and reduce the effects of the disease, but in some patients arthritis attacks in acute episodes, while in others arthritis chronically and relentlessly pursues its destructive course.
  • (13) Each sentence seems more absurd than the last until you are finally and irredeemably overwhelmed by its relentless meaningful meaninglessness.
  • (14) In language eerily familiar to student politicians across the land, Abetz continued: “The new managing director will inherit an unbalanced and largely centralised public broadcaster which has become a protection racket for the left ideology.” For decades the highly trusted public broadcaster has weathered a relentless stream of attacks by the crusaders of the (increasingly) hard right in Australia.
  • (15) He’s extra confident in my ability to get forward and to develop as a player.” Of his role under the German, Clyne says: “I’ll say definitely pressing on the front foot, setting the trap for the opposition team, and getting more forward on the pitch, and [being] solid defensively as well.” Despite a near-perfect performance when Liverpool handed Manchester City a lesson in high pressing and relentless energy during their 4-1 victory at the Etihad Stadium on 21 November, Klopp never stopped shouting on the touchline.
  • (16) It doesn't look like that, of course, when the doctor's surgery starts putting up signs in Polish, or your child can't get in to the nearest primary school, and the trajectory of the jobless figures seems relentlessly upwards – even when it is not.
  • (17) Joanne Segars, NAPF's chief executive, said: "The pressures on final-salary pensions are relentless and their rate of decline seems to be shifting into a new gear.
  • (18) The movement has been relentlessly promoted by Fox News, which belongs to a more familiar billionaire.
  • (19) This report demonstrates that it’s time we applied the same relentless focus on transparency and results to funding to the private sector,” he said.
  • (20) Right-to-work advocates are relentless, he indicates: “We have seen a literal campaign from the other side sprout up in the early summer: ‘Don’t forget to leave the union.’” He calls the 5,000 members who have jumped ship “not a tremendous loss” in the context of current workers.