uncertainty (noun)

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• uncertainty — ► NOUN (pl. uncertainties) 1) the state of being uncertain. 2) something that is uncertain or causes one to feel uncertain …   English terms dictionary

• uncertainty — un‧cer‧tain‧ty [ʌnˈsɜːtnti ǁ ɜːr ] noun [uncountable] a situation when what will happen in the future is likely to change, often in a way that is bad: • Exchange rate uncertainty is bound to reduce investment. uncertainty over/​about • The… …   Financial and business terms

• uncertainty — noun ADJECTIVE ▪ considerable, great, high (esp. AmE), significant, substantial ▪ The 1990s were a period of high uncertainty for businesses. ▪ fundamental …   Collocations dictionary

• uncertainty — noun 1) the uncertainty of the stock market Syn: unpredictability, unreliability, riskiness, chanciness, precariousness, changeability, variability, inconstancy, fickleness, caprice Ant: predictability 2) uncer …   Thesaurus of popular words

• uncertainty — noun Date: 14th century 1. the quality or state of being uncertain ; doubt 2. something that is uncertain Synonyms: uncertainty, doubt, dubiety, skepticism, suspicion, mistrust mean lack of sureness about someone or something. uncertainty may… …   New Collegiate Dictionary

• uncertainty principle — noun Date: 1929 a principle in quantum mechanics: it is impossible to discern simultaneously and with high accuracy both the position and the momentum of a particle (as an electron) called also Heisenberg uncertainty principle …   New Collegiate Dictionary

• uncertainty principle — noun Heisenberg uncertainty principle. Syn: indeterminacy principle …   Wiktionary

• uncertainty — I noun ambiguity, ambivalence, chance, confusion, contingency, darkness, desultoriness, dilemma, dimness, doubt, doubtfulness, dubiousness, equivocation, faintness, feebleness, gamble, hazard, hesitancy, hesitation, improbability, incertitude,… …   Law dictionary

• uncertainty — noun a) doubt; the condition of being uncertain or without conviction. b) Something uncertain or ambiguous. Ant: certainty …   Wiktionary

• uncertainty principle — noun Physics the principle, stated by Werner Heisenberg, that the momentum and position of a particle cannot both be precisely determined at the same time …   English new terms dictionary

• uncertainty principle — noun (quantum theory) the theory that it is impossible to measure both energy and time (or position and momentum) completely accurately at the same time • Syn: ↑indeterminacy principle • Topics: ↑quantum theory • Hypernyms: ↑scientific theory …   Useful english dictionary