What's the difference between obscure and perplexing?

Obscure


Definition:

  • (superl.) Covered over, shaded, or darkened; destitute of light; imperfectly illuminated; dusky; dim.
  • (superl.) Of or pertaining to darkness or night; inconspicuous to the sight; indistinctly seen; hidden; retired; remote from observation; unnoticed.
  • (superl.) Not noticeable; humble; mean.
  • (superl.) Not easily understood; not clear or legible; abstruse or blind; as, an obscure passage or inscription.
  • (superl.) Not clear, full, or distinct; clouded; imperfect; as, an obscure view of remote objects.
  • (a.) To render obscure; to darken; to make dim; to keep in the dark; to hide; to make less visible, intelligible, legible, glorious, beautiful, or illustrious.
  • (v. i.) To conceal one's self; to hide; to keep dark.
  • (n.) Obscurity.

Example Sentences:

  • (1) This diagnosis was obscured by the absence of cutaneous, oropharyngeal, and respiratory involvement.
  • (2) The mechanism of ACTH action on brain catecholamine metabolism is still obscure, however, an increased release of the NA to ACTH peptides is very likely in the light of the present observations.
  • (3) However, peptide bonds between 193 and 194, and 194 and 195 were cleaved in the presence of mAb 1C3 as easily as in the presence of mAb 31A4, suggesting that the region of residues 200 to 202 was obscured by, or within the antibody binding site, but that the region of residues 193 to 195 was not.
  • (4) The physician's approach to the differential diagnosis of obscure, atypical pneumonias has changed.
  • (5) The thigh and hip manifestations can obscure the primary intra-abdominal process either due to the obvious emphysema or to the obtunded abdominal signs secondary to associated neuropathy.
  • (6) While tonic pupil and reduced sweating can be attributed to the affection of postganglionic cholinergic parasympathetic and sympathetic fibres projecting to the iris and sweat glands, respectively, the pathogenesis of diminished or lost tendon jerks remains obscure.
  • (7) It is found that generic averages obscure some rather substantial differences at the species level for both Cercopithecus and Cercocebus.
  • (8) Although the pathophysiology of the pancreatic injury is obscure, the lack of other etiological factors and temporal association of the pancreatitis with acetaminophen-induced hepatic and renal toxicity suggest a causal relationship.
  • (9) Because reticulocytes contain a pool of uncombined alpha chains which might have obscured the demonstration of an alpha chain-dependent mechanism for beta-chain synthesis, subsequent studies were done with bone marrow cells.
  • (10) However, the mechanism by which Ag II is able to modulate anterior pituitary secretion still remains obscure.
  • (11) Other causes were 20 (13%) with cerebrovascular diseases, 30 (20%) hepatic failure and 11 (8%) were of miscellaneous and obscure causes.
  • (12) In such a case with a large hematoma, the presence of a tumor may be obscured on CT scan and angiography.
  • (13) However, the difficulty still remains that the latter may be obscured by differences not related to thermostability etc.
  • (14) The activating mechanism of the condition still remains obscure.
  • (15) Its language is “archaic and obscure”, the commission says.
  • (16) Clofibrate, an antilipidemic drug that acts by a still obscure mechanism, is known to specifically increase up to 30-fold the activity of the hepatic cytochrome P-450 isozyme that omega-hydroxlates lauric acid.
  • (17) On the electron microscopy, the sarcomere was shortened and Z-line was partly obscure.
  • (18) Photographs of 82 boys from the Harpenden Growth Study were measured at ages 5 to 18 years, in an order that obscured which photographs were of the same boy at different ages.
  • (19) Although the K+ concentration of the contents of the GI tract as well as the K+ transport by the portal vein were increased, the source of the excess K+ remains obscure.
  • (20) The effects of long-term exposure of humans to formaldehyde, however, are more obscure.

Perplexing


Definition:

  • (p. pr. & vb. n.) of Perplex
  • (a.) Embarrassing; puzzling; troublesome.

Example Sentences:

  • (1) Perplexed, from being absorbed into some undateable future world governed by an advanced technology whose capacities have to be learned as one reads.
  • (2) The sergeant, listening in, was perplexed: "We obviously have, because I can hear you on the radio.
  • (3) Whether FcR-mediated signaling and receptor-mediated signaling involved in NK activity share specific biochemical intermediates is not known, but the involvement of tyrosine kinase function in the latter means of cytotoxicity may provide novel avenues for understanding the biochemical basis of this perplexing cellular function.
  • (4) The arteriogram correctly localized the precise site of hemorrhage in this perplexing case, and a complex surgical problem was simplified.
  • (5) The trauma-ready practice must also be cognizant of the some-times perplexing legal and insurance issues with regard to preventing and treating sport-related injuries.
  • (6) According to Lukyanov, the Kremlin is “perplexed” by Trump because it’s not clear what his priorities are nor whether he can work with Congress to achieve them.
  • (7) While treatment of a young woman with a dysgerminoma of 1 ovary is a matter of perplexity, we believe that a unilateral operation should be limited to those women who desire above all earthly things to retain their childbearing capacity.
  • (8) The most perplexing issues in pediatric dentistry today are related to the management of patients.
  • (9) "It is perplexing and preposterous to hear human rights complaints from the US, where torture and kidnapping are legal in the 21st century."
  • (10) It was a wretched goal to concede and the unfortunate truth for Mignolet is that moment reminded us why many Liverpool supporters are perplexed he has been awarded a new five-year contract.
  • (11) Instead, when we meet her at the beginning of the series, Nyborg is more concerned with moving house – presumably supplying viewers with shots of a variety of stylish new light fittings and perplexing floor plans to obsess over – than a political party with which she is increasingly disillusioned.
  • (12) I was [looks perplexed]: ‘Where’s the fabulous Madonna ?’ But it was still deeply interesting just to shake this tiny little hand, and say ‘You’re real’, because in the 80s, these people lived on plinths, they never came down to Earth.” This encounter made Patterson realise that celebrity per se didn’t exist.
  • (13) The implementation of library orientation and bibliographic instruction in health sciences centers presents some interesting as well as perplexing problems.
  • (14) It is now shown that the perplexity may be due to the possibility that the coenzyme (NAD) required for UDPG-D activity, may be acting as a substrate for a second dehydrogenase, namely xanthine dehydrogenase, which may utilize NAD as its substrate.
  • (15) Management of the patient with tinnitus is an extremely perplexing problem.
  • (16) Paul Salveson, author of a new book on the future of the railways, Railpolitik , is equally perplexed.
  • (17) Prematurity is one of the most perplexing problems in perinatal care.
  • (18) If chemical weapons were used, the timing of the attack is perplexing, the inspector said.
  • (19) Perplexing findings of cortical somatosensory evoked potentials (SEP's) for determining the central sulcus during a craniotomy are reported in a case of brain tumor.
  • (20) As cellular and molecular approaches combine with physiologic techniques, new information will be available to address the clinical issues of luteal dysfunction which perplex us all.