What's the difference between unsuccessful and useless?

Unsuccessful


Definition:

  • (a.) Not successful; not producing the desired event; not fortunate; meeting with, or resulting in, failure; unlucky; unhappy.

Example Sentences:

  • (1) In addition, this pretreatment protocol did not modify the recipient immune response against B-lymphocyte alloantigens which developed in unsuccessful transplants.
  • (2) The role of early cardiac catheterization to detect patients who have unsuccessful thrombolysis or who require mechanical revascularization procedures is under active investigation.
  • (3) Unsuccessful problem solutions revealed two patterns of students performances.
  • (4) All patients were unsuccessful by treated with antiaggregants, vasodilators and haemorheological medicaments.
  • (5) Conservative treatment was unsuccessful and after 18 days concentrated ascitic fluid was reinfused intravenously using a Gambro haemofilter.
  • (6) Conventional medical treatment followed in unsuccessful cases by trabeculectomy (group A) was compared with trabeculectomy at diagnosis followed when necessary by supplementary medical therapy (group B).
  • (7) In four of the empyemas, PCD was used successfully after incomplete or unsuccessful chest tube drainage.
  • (8) After unsuccessful treatment with surgical debridement and high-dose antibiotic therapy, hyperbaric oxygen therapy was administered in a multiplace recompression chamber (one hour of treatment at 1.8 atmospheres absolute followed by a 30 minute "ascent" to surface pressure).
  • (9) The patient was admitted for surgical revascularization following angiography and an unsuccessful attempt at crossing a severe renal artery stenosis.
  • (10) Prolactin plasma concentrations decreased rapidly at the end of incubation in ducks which successfully hatched young as well as in unsuccessful incubators.
  • (11) Direct surgical exposure of the cervical or cavernous internal carotid artery (ICA) was necessary in the remaining 3 patients, who had undergone unsuccessful surgical trapping.
  • (12) The initiator of an aggressive encounter was likely to be successful if there was no adult interaction, but to be unsuccessful if an adult intervened.
  • (13) Several attempts to use a complementary oligodeoxynucleotide to direct a uranyl "warhead" against an oligodeoxynucleotide target were unsuccessful.
  • (14) By LHRH treatment 36 testes (20.5%) reached the scrotum, when HCG was added in unsuccessful cases 47 other gonads (26.8%) descended.
  • (15) Seven attempts were made between September and December 1978 at the Gollwitzer-Meier Institute of Cardiology; three dilatations were unsuccessful, two were moderately successful and two highly successful.
  • (16) Bidirectional selection in the E strain was unsuccessful, but an asymmetrical response to selection was obtained in the N strain and in lines derived from crosses between the N and the E strains.
  • (17) The calls were organised after the administration unsuccessfully asked FBI officials to dispute the accuracy of stories, the Post said.
  • (18) Thus, the regional determination of plasma PTH represents a tool to improve the preoperative localization of parathyroid adenomas in patients with hypercalcaemic hyperparathyroidism and, hence, to reduce the risk of an unsuccessful operation.
  • (19) After the unsuccessful treatment with classical methods by skin grafting, a mixed myocutaneous Latissimus Dorsi and cutaneous parascapular flap allow the coverage of 25 centimetres of the scalp in his larger axis.
  • (20) Prolonged total parenteral nutrition, intravenously administered albumin, antisecretory agents, and antibiotics were unsuccessful in controlling the disease.

Useless


Definition:

  • (a.) Having, or being of, no use; unserviceable; producing no good end; answering no valuable purpose; not advancing the end proposed; unprofitable; ineffectual; as, a useless garment; useless pity.

Example Sentences:

  • (1) Theoretical findings on sterilization and disinfection measures are useless for the dental practice if their efficiency is put into question due to insufficient consideration of the special conditions of dental treatment.
  • (2) It’s useless if we try and fight with them through force, so we try and fight with them through humour.” “There is a saying that laughing is the best form of medicine.
  • (3) It also seems to be a bit useless as a way of gathering intelligence.
  • (4) It is concluded that the femoral stem should be as thick as possible and that the collar of the prosthesis is useless.
  • (5) The clorus water disinfecting conventional methods by many reasons are useless, even in urbanized cities.
  • (6) By now seemingly every print and online outlet has had a crack at explaining why the Sunday shows are so phenomenally useless.
  • (7) He added: "Why on earth is this useless Goverment pandering to Puffs?
  • (8) It’s great that the new Star Wars film is more diverse , with John Boyega and Daisy Ridley in significant roles; I am pleased to see everyone on #BoycottStarWarsVII gnash and whine uselessly.
  • (9) Inappropriate, useless and potentially harmful surgical diagnostic procedures are also avoided.
  • (10) However, under normal working conditions, taking into account the period of time which inevitably elapses between the patient feeling pain in the kidney and his reaching the Emergency Department and the necessary examinations being carried out which enable the correct diagnosis to be made, the number of hours which have passed make attempts at conservative surgery completely useless.
  • (11) However one should not ask for the impossible of the treatment of male infertility since the most optimal seminal analysis result is useless in the presence of a monophysic menstrual cycle in the partner.
  • (12) The endoscopic retrograde cholangiography is of greatest practical significance for the differential diagnosis of the cholestatic icterus: non-obstructed bile ducts exclude an extrahepatic icterus and render a laparotomy useless.
  • (13) If you have a regulator behaving this uselessly, I suspect MPs will start saying this is not regulation," he said.
  • (14) The importance of a diagnosis before surgery by cytopunction and drill-biopsy has to be emphasized, to prevent an useless mastectomy.
  • (15) In conclusion, excepted for pituitary deficiency, basal plasma TSH (IRMA) levels are accurate and sufficient in the evaluation of the thyroid function and make the TRH-test useless.
  • (16) (4) The annual vaccination campaigns since 1970 against FMD were useless because most of the primary outbreaks of FMD since then can be traced to the production or the application of vaccines.
  • (17) A hepatic lesion regarded as useless for the ultimate diagnosis was present in 16 cases (14.5 per cent).
  • (18) Talking this week to several, I heard the same story of exorbitant fees and shocking interest rates throttling real production, while Adair Turner's "socially useless" financial products attract limitless bubble credit.
  • (19) Clinical evaluation and laboratory tests are useless.
  • (20) The Chinese government is depicted as benevolent, while the US government manages to be both sinister and useless – typified by the black-clad CIA operatives, one of whom gets beaten up by a Chinese character.