1. 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.
Synonyms
indeterminacy principle scientific theory
Antonyms
wave theory wave theory of light corpuscular theory of light
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2. uncertainty

noun. (ənˈsɝːtənti) Being unsettled or in doubt or dependent on chance.
Synonyms
indefiniteness indeterminateness doubt quality indefinity indeterminacy question unpredictability improbability precariousness dubiousness doubtfulness indetermination improbableness uncertainness fortuitousness speculativeness
Antonyms
certainty probability predictability trust believe
Etymology
uncertainty (English)
certainty (English)
certeynte (Middle English (1100-1500))
certeinte (Anglo-Norman)
certeinete (Old French (842-ca. 1400))
un- (English)
on- (Middle English (1100-1500))
on- (Old English (ca. 450-1100))
ond- (Old English (ca. 450-1100))
un- (Middle English (1100-1500))
un- (Old English (ca. 450-1100))
unus (Latin)
oinos (Latin)

3. uncertainty

noun. (ənˈsɝːtənti) The state of being unsure of something.
Synonyms
dubiousness misgiving distrust state of mind doubt dubiety arriere pensee incertitude suspense mental reservation mental rejection peradventure skepticism indecisiveness irresolution doubtfulness incredulity reservation disbelief cognitive state suspicion mistrust indecision
Antonyms
certainty consciousness unconsciousness inwardness outwardness
Etymology
uncertainty (English)
certainty (English)
certeynte (Middle English (1100-1500))
certeinte (Anglo-Norman)
certeinete (Old French (842-ca. 1400))
un- (English)
on- (Middle English (1100-1500))
on- (Old English (ca. 450-1100))
ond- (Old English (ca. 450-1100))
un- (Middle English (1100-1500))
un- (Old English (ca. 450-1100))
unus (Latin)
oinos (Latin)

4. principle

noun. (ˈprɪnsəpəl) A basic generalization that is accepted as true and that can be used as a basis for reasoning or conduct.
Synonyms
yin rule generalisation pillar yang feng shui generality generalization
Antonyms
yang yin dark light black
Etymology
principle (English)
principe (Old French (842-ca. 1400))
principium (Latin)

5. principle

noun. (ˈprɪnsəpəl) A rule or standard especially of good behavior.
Synonyms
value orientation Hellenism accounting principle scruple accounting standard judicial doctrine value chivalry knightliness ethic value-system legal principle judicial principle moral principle
Antonyms
white overestimate overvalue undervalue underestimate
Etymology
principle (English)
principe (Old French (842-ca. 1400))
principium (Latin)

6. principle

noun. (ˈprɪnsəpəl) A basic truth or law or assumption.
Synonyms
natural law insurrectionism law bedrock reality principle basics fundamental principle logic pleasure-pain principle pleasure principle pleasure-unpleasure principle basic principle fundamentals conservation Tao dictate
Antonyms
reality principle pleasure principle unimportance worthlessness criticize
Etymology
principle (English)
principe (Old French (842-ca. 1400))
principium (Latin)

7. principle

noun. (ˈprɪnsəpəl) A rule or law concerning a natural phenomenon or the function of a complex system.
Synonyms
principle of liquid displacement principle of superposition rule localisation of function mass action Le Chatelier's law localisation mass-energy equivalence mass-action principle Ockham's Razor Gestalt law of organization Le Chatelier principle law law of nature Gestalt principle of organization Naegele's rule superposition principle Occam's Razor Gresham's Law superposition Le Chatelier's principle localization of function localization localization principle principle of parsimony principle of equivalence Le Chatelier-Braun principle localisation principle Huygens' principle of superposition law of parsimony
Antonyms
disesteem look down on disrespect darkness lightness
Etymology
principle (English)
principe (Old French (842-ca. 1400))
principium (Latin)

8. principle

noun. (ˈprɪnsəpəl) (law) an explanation of the fundamental reasons (especially an explanation of the working of some device in terms of laws of nature).
Synonyms
explanation rationale dialectics
Antonyms
misconception civil law international law importance
Etymology
principle (English)
principe (Old French (842-ca. 1400))
principium (Latin)

9. principle

noun. (ˈprɪnsəpəl) Rule of personal conduct.
Synonyms
rule ethical code precept hypothetical imperative prescript caveat emptor ethic higher law moral principle
Antonyms
discourtesy particularity general specific individuality
Etymology
principle (English)
principe (Old French (842-ca. 1400))
principium (Latin)
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