Online Google Dictionary

uncertainty 中文解釋 wordnet sense Collocation Usage Collins Definition
Noun
/ˌənˈsərtntē/,
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uncertainties, plural;
  1. The state of being uncertain
    • - times of uncertainty and danger
  2. Something that is uncertain or that causes one to feel uncertain
    • - financial uncertainties
  1. being unsettled or in doubt or dependent on chance; "the uncertainty of the outcome"; "the precariousness of his income"
  2. doubt: the state of being unsure of something
  3. (uncertain) lacking or indicating lack of confidence or assurance; "uncertain of his convictions"; "unsure of himself and his future"; "moving with uncertain (or unsure) steps"; "an uncertain smile"; "touched the ornaments with uncertain fingers"
  4. (uncertain) unsealed: not established or confirmed; "his doom is as yet unsealed"
  5. (uncertain) changeable: subject to change; "a changeable climate"; "the weather is uncertain"; "unsettled weather with rain and hail and sunshine coming one right after the other"
  6. Uncertainty is a 2008 indie drama film written, produced, and directed by American independent filmmakers Scott McGehee and David Siegel, and starring Lynn Collins and Joseph Gordon-Levitt. It was first released at the 2008 Toronto International Film Festival.
  7. doubt; the condition of being uncertain or without conviction; Something uncertain or ambiguous; (mathematics) A parameter that measures the dispersion of a range of measured values
  8. (uncertain) not known for certain; questionable; not yet determined; undecided; variable and subject to change; fitful or unsteady; unpredictable or capricious
  9. (Uncertain) a fish stock that might be not overfished, overfished, or subject to overfishing, but for which there is inadequate or inappropriate information to make a reliable assessment of its status.
  10. Uncertainties are factors over which the utility has little or no foreknowledge, and include load growth, fuel prices, or regulatory changes.  Uncertainties are modeled in a probabilistic manner. ...
  11. (Uncertainties) In the scientific field, no one can claim something with 100% certainty, but this does not mean that nothing is known. The UN's climate panel, IPCC, employs a range of terms in order to try to clarify how one deals with uncertainties.
  12. Uncertainty is a prominent feature of the benefits and costs of climate change. Decision makers need to compare risk of premature or unnecessary actions with risk of failing to take actions that subsequently prove to be warranted. ...
  13. A measure of the amount of doubt or distrust with which the data should be used.
  14. Synonym: error. A measure of the the inherent variability of repeated measurements of a quantity. A prediction of the probable variability of a result, based on the inherent uncertainties in the data, found from a mathematical calculation of how the data uncertainties would, in combination, lead ...
  15. Contrasts with a trend. A trend is something that's gradually happening. An uncertainty is a trend or event that has a reasonable chance of happening. If it does happen, and it will make a major difference, it's known as a critical uncertainty. ...
  16. Arises when the outcomes of courses of action are indeterminate or subject to doubt.
  17. Lack of knowledge of future events. See also Project Risk.
  18. The degree of variability in the observations.
  19. Randomness in the cause and timing of ill health.
  20. Describes situations where potential outcomes cannot be estimated based on historical events.
  21. HIA is fundamentally about clarifying uncertainty
  22. An expression of the degree to which a value (eg, the future state of the climate system) is unknown. Uncertainty can result from lack of information or from disagreement about what is known or even knowable. ...
  23. Lack of sure knowledge or predictability because of randomness.
  24. Failure to know anything that may be relevant for an economic decision, such as future variables, details of a technology, or sales. In models, uncertainty usually appears as a random variable and corresponding probability density function. ...
  25. While risk is a form of uncertainty that has a well-grounded (quantitative) probability, genuine uncertainty cannot be ascribed a probability. ...