What's the difference between controvert and gainsay?

Controvert


Definition:

  • (v. t.) To make matter of controversy; to dispute or oppose by reasoning; to contend against in words or writings; to contest; to debate.

Example Sentences:

  • (1) The findings of this study do not necessarily controvert the microbial origin of some components of the biofilm, or the possible role of biofilm in some cases of persisting peritoneal infection.
  • (2) Their circulating precursors, the mechanism of their migration into the epidermis and their relationship with other dendritic cells, such as the interdigitating follicular cells, are controverted.
  • (3) Although antidepressive treatments have been used for about thirty years, the question of their duration remains controverted.
  • (4) Both of these factors would seem to indicate a degree of variability that controverts the predictability of the adjustment procedure.
  • (5) The finding of 3 identical cases in a French family of 9 persons led to the diagnosis of Gordon's syndrome, a rare hereditary metabolic disorder with a controverted physiopathology.
  • (6) Hypertrophic obstructive cardiomyopathy, the pathogenesis of which is controverted, exposes the patient to the risk of sudden death and often evolves towards heart failure.
  • (7) Induction poly-chemotherapy seems far superior over the MP combination, which was always a controverted issue.
  • (8) The responsibility of Plethoryl in case 2 is beyond any doubt, but the mechanism of hypervitaminosis in case 1 is controverted.
  • (9) The association of dermatomyositis-polymyositis and cancer has been known for many years but is still controverted.
  • (10) To improve the results obtained, one of the most important lines of research is chemotherapy, but its place in the management of these tumours is still controverted.
  • (11) In order to investigate the controverted effect of glucose on hyperammonemia the diet of eight advanced cirrhotics was supplemented hourly, between 9 a.m. and 5 p.m., with 20 g of glucose orally.
  • (12) The pathogenic role of mycoplasms during pregnancy remains quite controverted, depending on the studies; for some it has an incidence on prematurity, delayed growth in utero and premature rupture of the membranes.
  • (13) These new data on the physiology of the cardiac noradrenergic system have major therapeutic consequences: in practice, the positively inotropic beta-stimulants can only be used for a short period in acute episodes of heart failure; - the use of beta-blockers in low doses is now considered in the treatment of some forms of heart failure; the mechanism of their therapeutic action remains controverted, and their long-term effectiveness in a large patient population is under study; - a new pharmacological class, beta-adrenoceptor partial agonists, seems to give satisfactory clinical and haemodynamic results in mode-rate heart failure, A wider clinical evaluation is needed to determine the therapeutic role of theses new pharmacodynamic agents.
  • (14) The relationship between trauma and reaction arthritis, although controverted must be interpreted in each specific cases, after chronological analysis of the events.
  • (15) Foetal loss seems to be caused by thrombosis of the placenta, the origin of which remains controverted.
  • (16) These considerations controvert the error catastrophe theory of cell senescence.
  • (17) The immunological work-up may also indicates an abnormal maternal tolerance of the fetus which presents currently a controverted immunological problem.
  • (18) The occurrence of morphea has been attributed to Borrelia, burgdorferi infection, but the relationship between localised scleroderma and borreliosis remains controverted.
  • (19) Moreover, the use of digitalis derivatives in CHF with sinus rhythm is controverted due to the frequent toxicity of these drugs and to their allegedly weak positive inotropic activity.
  • (20) For lack of a better basis, chronic bronchitis is defined in clinical terms (almost daily productive cough 3 months each year, at least on 2 consecutive years); the terms "chronic cough" and "recurrent bronchitis" are still controverted.

Gainsay


Definition:

  • (v. t.) To contradict; to deny; to controvert; to dispute; to forbid.

Example Sentences:

  • (1) It responded to all who predicted the chaos now engulfing us like an unscrupulous pundit who knows that his living depends on shutting up the experts who gainsay him.
  • (2) Azerbaijan As yet a non-aligned Eurovision nation Who would gainsay the chances of the plucky Azeris, who have only been in Eurovision for two years and so are relative innocents in this grubby pseudo-musical farce?
  • (3) It was impossible to gainsay David Moyes, when he insisted: "It wasn't even a free-kick."
  • (4) For Israel, he was the unregenerate terrorist; and Washington would not gainsay its protege.
  • (5) And that means gainsaying the administration’s hesitant Syria policy and throwing credit to the McCains, Kings and Grahams who said that we should have been arming those rebels all along.