What's the difference between dumb and obtuse?

Dumb


Definition:

  • (a.) Destitute of the power of speech; unable; to utter articulate sounds; as, the dumb brutes.
  • (a.) Not willing to speak; mute; silent; not speaking; not accompanied by words; as, dumb show.
  • (a.) Lacking brightness or clearness, as a color.
  • (v. t.) To put to silence.

Example Sentences:

  • (1) Cheers, then, to an apparent alliance of the NME, a few people in London's trendy E1 district and some dumb young musicians, because "New Rave" is upon us, and there is apparently no stopping it.
  • (2) Four brain smears from dogs which died of dumb rabies were positive for Negri bodies while two brain smears obtained from dogs which died of the furious form of rabies were negative.
  • (3) The court heard that MP responded to Nimmo's message of "Dumb blonde bitch" with the message "That's dumb Dr blonde bitch to you".
  • (4) At the moment, most of our electricity and gas meters are dumb, analogue devices: they record your consumption and someone comes round periodically to take a reading.
  • (5) We now show by immunoelectron microscopy that Fab fragments of a desmin-specific monoclonal antibody mixed with the rod lead to dumb-bell-shaped structures.
  • (6) On admission, a dumb-bell type huge tumor with the destruction of the orbital roof was demonstrated on CT scan and MRI.
  • (7) The non-solid bacilli were further classified on the basis of their morphology to the following forms:-- (a) short but evenly stained (b) indented (c) beaded (d) dumb-bell shaped (e) coccoid and (f) fragmented.
  • (8) In an ideal world, such findings might be interpreted as smart women making smart choices, but instead it seems that this research is just adding fuel to the argument that women who don't have children, regardless of the reason, are not just selfish losers but dumb ones as well.
  • (9) Large granules, 160 nm in diameter, already reported in the ITP (KEMALI 1977a), are also shown as well as tiny flat mixed with large flat dense core vesicles of dumb-bell shape.
  • (10) Critics accused the BBC of dumbing down when Kirsty Young replaced Sue Lawley as host of Desert Island Discs, while t he dismissal of Ed Stourton from the Today presenting team was executed shambolically , with the presenter learning his fate from a rival news organisation rather than his bosses.
  • (11) As in canine rabies there are furious and dumb forms of the disease.
  • (12) Charlie Hebdo was launched by a group of "non-conformists" who had previously run a monthly called Hara Kiri (whose subtitle read: "dumb and nasty").
  • (13) He might have been born with a silver spoon and declared bankruptcy four or five times but he is not dumb.
  • (14) A GST on fresh food is an exceptionally dumb strategy in the midst of an obesity crisis | Catherine King Read more Labor said that much of that money would go towards compensating lower income earners, leaving little money for other services.
  • (15) Dumb rabies and cysticerci in dogs being sold to people in rural communities pose potential public health hazards.
  • (16) In a blog published on Friday afternoon entitled "My teenage mistakes" , Weldon said his year-long flirtation would have remained the embarrassing stuff of his youth had he not a few years later done what he described as a "dumb thing" and boasted about his past in an Oxford student newspaper.
  • (17) Mitt's now trying to rebut the "Let Detroit go bankrupt" line o argument, which is dumb.
  • (18) The internet of things is the idea of creating a home where everything is connected to the internet, creating “swarm intelligence” from individually dumb devices.
  • (19) Gove launched an all-out attack on the "educational establishment", claiming it suffered from "defeatism, political correctness and the entrenched culture of dumbing down".
  • (20) "We will tackle head-on the defeatism, the political correctness and the entrenched culture of dumbing down that is at the heart of our educational establishment."

Obtuse


Definition:

  • (superl.) Not pointed or acute; blunt; -- applied esp. to angles greater than a right angle, or containing more than ninety degrees.
  • (superl.) Not having acute sensibility or perceptions; dull; stupid; as, obtuse senses.
  • (superl.) Dull; deadened; as, obtuse sound.

Example Sentences:

  • (1) Extensive research among the Afghan National Army – 68 focus groups – and US military personnel alike concluded: "One group sees the other as a bunch of violent, reckless, intrusive, arrogant, self-serving profane, infidel bullies hiding behind high technology; and the other group [the US soldiers] generally views the former as a bunch of cowardly, incompetent, obtuse, thieving, complacent, lazy, pot-smoking, treacherous, and murderous radicals.
  • (2) Vessel attempted: Left anterior descending (3), circumflex (4), obtuse marginal (2), diagonal (1), right coronary artery (3), and internal thoracic artery (1).
  • (3) The lesions classified as distal were located in left anterior descending (LAD) artery beyond the origin of second diagonal (D2), left circumflex (LCx) after the main obtuse marginal (OM) and right coronary artery (RCA) after the origin of acute marginal branch.
  • (4) The vascular diameter of obtuse marginal coronary arteries was determined by means of gated color arteriography (injection of patent blue dye).
  • (5) There were still quite a few Marxists at Oxford in those days – Terry Eagleton and his clique were seemingly bolted to the same table in the King’s Arms the entire time I  was an undergraduate – but while I was silly and naive enough to believe in the purifying, energising effects of violent revolution, I wasn’t obtuse enough to think of dialectical materialism as anything more than a powerful heuristic.
  • (6) An obtuse chest wall intersecting angle and the length of the neighboring borders of the tumor and chest wall were of limited value.
  • (7) They analyze the radiographs according to thorough criterions, described in the text, and come to the conclusion that intrahepatic biliary ducts in cirrhotic livers present serious alterations, represented by distorted ducts with focal stenoses, nodular impressions, wall irregularities, increase of the number of obtuse angles and poor peripheral filling, which confer a disharmonic aspect to the intra-hepatic biliary ducts of these organs.
  • (8) Such an ill-informed and illogical standpoint is a worrying sign of ideologically driven obtuseness.
  • (9) By depressing the fundus of the stomach, the angle of His was made more obtuse and the flap valve component eliminated.
  • (10) 7) As a result of cephalometric diagnosis, the nasion appeared to be protruded, therefore maxillary and mandibular seemed to be relatively retracted, and the gonial angle was obtuse.
  • (11) On cooling, there is a substantial change in the unit cell beta-angle from obtuse (93.3 degrees) to acute (85.5 degrees) which involves a shearing motion of 2.5 A between adjacent molecular layers.
  • (12) Patient 2 (62-year-old woman) underwent simultaneous operation of both right nephrectomy and triple aortocoronary bypass grafting (saphenous vein grafts to obtuse marginal branch and right coronary artery, and left internal mammary artery to left anterior descending artery).
  • (13) Laser angioplasty of the vein graft to the obtuse marginal branch reduced the first of three sequential lesions from 60% to 40%, the second lesion from 90% to none and the third from 60% to 20% without the need for balloon angioplasty.
  • (14) The subaortal cone and deferent part of the left ventricular axes make an obtuse angle; the axes of the subpulmonary and subaortal cones have a cross direction.
  • (15) In comparison with white norms, the Chinese nose was less prominent (P < .01), the nasolabial angle was less obtuse (P < .01), both the upper and lower lips were more protrusive (P < .05), the upper lip curvature was greater (P < .01), and the soft-tissue chin thickness was less (P < .05).
  • (16) The cleft group differed from the control group in several major respects: (1) Their over-all growth trend showed a more downward or vertical direction; (2) The cranial base angle was more flattened; (3) The maxilla was smaller and was located in a more posterior and upward position; (4) Ramal height was shorter and the gonial angle was more obtuse.
  • (17) The obstacle could yet be an inability on the part of so many enthusiasts to work together, and an obtuse academic dismissal of a technology that can release to the world a new delight in the past.
  • (18) A difference in the appearance of the hypothalamic and infundibular recesses in the primary empty sella group with SVS herniation (dilated recesses and formation of an obtuse angle) and in the secondary empty sella group with SVS herniation (nondilated recesses and formation of an acute angle) was observed.
  • (19) An obtuse or sharp angle between duct planes can lead to better performance of a particular labyrinth because the "external impulses" in the different ducts may amplify or compensate each other.
  • (20) The nasolabial angle became more obtuse increasing from 80.7 degrees to 90.7 degrees.