What's the difference between impossible and infeasible?

Impossible


Definition:

  • (a.) Not possible; incapable of being done, of existing, etc.; unattainable in the nature of things, or by means at command; insuperably difficult under the circumstances; absurd or impracticable; not feasible.
  • (n.) An impossibility.

Example Sentences:

  • (1) The size of Florida makes the kind of face-to-face politics of the earlier contests impossible, requiring instead huge ad spending.
  • (2) It was considered worthwhile to report this case due to the problems which arose concerning the choice of a thoracic rather than abdominal route owing to the impossibility of associating cardiomyotomy with anti-reflux plastica surgery because of the reduced dimensions of the stomach.
  • (3) During periods of wet steam it was impossible to maintain consistent sterility of the mouse pellets even using a cycle of 126 degrees C for 60 minutes.
  • (4) It is stated, that it is impossible to strive to effectively control the smoking habit neither by way of the consulting hours for smokers nor by means of the 5-days-plans.
  • (5) It’s impossible to understand why they don’t hold a PRB every single day.
  • (6) The contra-indications for them are: 1. a better visual acuity with spectacles than with contact lenses, 2. advanced cases (4th degree of Amsler) whose fitting is impossible, 3. unilateral keratoconus, 4. associated diseases such as trachomatous pannus, allergic kerato-conjunctivitis.
  • (7) Not long ago the comeback would have been impossible to imagine.
  • (8) It is often difficult if not impossible to include a pediatric patient in the planning of burn reconstruction.
  • (9) But leading British doctors Sarah Creighton , consultant gynaecologist at the private Portland Hospital, Susan Bewley , consultant obstetrician at St Thomas's and Lih-Mei Liao , clinical psychologist in women's health at University College Hospital then wrote to the journal countering that his clitoral restoration claims were "anatomically impossible".
  • (10) "I have tried to borrow the money, but it was simply impossible."
  • (11) It appears impossible to define a "positive" tilt test that would adequately identify patients with clinically significant dehydration or blood loss; this is due to the large variance in patients' orthostatic measurements both in a healthy and in an ill state and the lack of a significant correlation of orthostatic measurements to a level of dehydration.
  • (12) The grand patriarch, battling dissent and delusion, coming in for another shot, a new king on the throne, an impossible future to face down.
  • (13) Contrary to the claims of some commentators, such as Steve Vladeck , it is impossible to argue reasonably that the memo imposed a requirement of "infeasibility of capture" on Obama's assassination power.
  • (14) Clearly, it is impossible to combine the diverse information briefly outlined in this review to provide a coherent model of the regulation of globin gene expression during development.
  • (15) This report emphasizes the value of intensive investigation before surgery, since it may be impossible to identify the site of bleeding at laparotomy.
  • (16) It is as yet impossible to judge how far routine magnetic resonance imaging will supplant or complement CT in making the initial clinical diagnosis.
  • (17) She said it was impossible to attribute the increase in Indigenous women’s incarceration rates to one specific factor, but law and order policies of federal and state governments should be examined.
  • (18) It was impossible to distinguish the type of drug used for inhibition of EIA if it caused bronchodilatation at rest.
  • (19) Facebook Twitter Pinterest Columnist Jonathan Freedland and economics editor Larry Elliott discuss the late-night deal that the Greek prime minister Alexis Tsipras has agreed to When it comes to the now-abandoned Thessaloniki Programme, the radical manifesto on which Alexis Tsipras came to power, there is always talk of implementing it “from below”: that is, demanding so many workers’ rights inside the industries designated for privatisation that it becomes impossible; or implementing the minimum wage through wildcat strikes.
  • (20) It was impossible to trace the axons originating in the NLT, since the cyto- and axoplasm could not be stained specifically.

Infeasible


Definition:

  • (a.) Not capable of being done or accomplished; impracticable.

Example Sentences:

  • (1) Contrary to the claims of some commentators, such as Steve Vladeck , it is impossible to argue reasonably that the memo imposed a requirement of "infeasibility of capture" on Obama's assassination power.
  • (2) Traditional methods for computing linkage likelihoods can be infeasible for data that involve considerable inbreeding and missing information, characteristics of large pedigrees affected by rare recessive diseases.
  • (3) For some procedures or diagnoses, however, such mortality savings are either medically infeasible because of the emergency nature of the problem or logistically impossible because of the extent of regionalization implied.
  • (4) The mountain is haughty and proud, an enormous glacier fills the valley in front and in the foreground – giving scale to the scene and a sense of infeasibility to the task facing the men inside them – is a little collection of tents.
  • (5) Large consumer copayments and insurer utilization controls, once deemed politically infeasible, have become commonplace.
  • (6) Existing approaches for obtaining these estimates are problematic, complicated by time-varying data or infeasible data requirements, and may result in biased estimators.
  • (7) Because of this, it is computationally infeasible to consider the energetics of all conformations available to a nucleic acid without the use of simplifications.
  • (8) The idea that assassinations will be used only where capture is "infeasible" is a political choice, not a legal principle.
  • (9) It is suggested that yeast extract supports the transport of the nucleoids into the lateral branches, which otherwise is often infeasible.
  • (10) Out of the good grace of his heart, or due to political expedience, Obama may decide to exercise this power only where he claims capture is infeasible, but there is no coherent legal reason that this power would be confined that way.
  • (11) Preliminary results indicate that the specification of a Minimum Basic Data Set as the basis of a shared record system is infeasible and undesirable.
  • (12) Exact probability calculations are often infeasible on large complex pedigrees.
  • (13) We experienced a 74-year-old female with thyroid carcinoma invading the trachea, for whom radical resection was infeasible.
  • (14) Beyond a certain point the scale of the cuts becomes politically, economically and technologically infeasible.
  • (15) Extraovular prostaglandin may therefore be of particular value in inducing abortion in patients who are in the early midtrimester of pregnancy, i.e., when intra-amniotic instillation is technically infeasible.
  • (16) It recommended that “after very careful consideration and taking all the circumstances into account that little could have been done to avert what happened, other than by introducing a security regime that would have been so severe that it would have rendered the programme infeasible”.
  • (17) If the president has the power to kill anyone he claims is an "enemy combatant" in this "war", including a US citizen, then there is no way to limit this power to situations where capture is infeasible.
  • (18) Previous retrograde endoscopic procedures were incomplete or infeasible in all patients.
  • (19) Those factors make it impossible or infeasible to convert the alcohol concentration of breath or urine to the simultaneous blood alcohol concentration with forensically acceptable certainty, especially under per se or absolute alcohol concentration laws.
  • (20) Although the regression predicts that increasing the number of residency programs in an underserved state should be associated with an increase the number of anesthesiologists, such a policy may be infeasible dur to pending federal health manpower legislation unless matched by decreasing a greater number of programs in relatively oversupplied states.