de·duc·tive 
[di-duhk-tiv] Pronunciation Key - Show IPA Pronunciation
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[di-duhk-tiv] Pronunciation Key - Show IPA Pronunciation –adjective
| based on deduction from accepted premises: deductive argument; deductive reasoning. |
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de·duc·tive·ly, adverb
—Synonyms Deductive and inductive refer to two distinct logical processes. Deductive reasoning is a logical process in which a conclusion drawn from a set of premises contains no more information than the premises taken collectively. All dogs are animals; this is a dog; therefore, this is an animal: The truth of the conclusion is dependent only on the method. All men are apes; this is a man; therefore, this is an ape: The conclusion is logically true, although the premise is absurd. Inductive reasoning is a logical process in which a conclusion is proposed that contains more information than the observations or experience on which it is based. Every crow ever seen was black; all crows are black: The truth of the conclusion is verifiable only in terms of future experience and certainty is attainable only if all possible instances have been examined. In the example, there is no certainty that a white crow will not be found tomorrow, although past experience would make such an occurrence seem unlikely.
plau·si·ble [plaw-zuh-buhl] Pronunciation Key - Show IPA Pronunciation
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[plaw-zuh-buhl] Pronunciation Key - Show IPA Pronunciation –adjective
| 1. | having an appearance of truth or reason; seemingly worthy of approval or acceptance; credible; believable: a plausible excuse; a plausible plot. |
| 2. | well-spoken and apparently, but often deceptively, worthy of confidence or trust: a plausible commentator. |
[Origin: 1535–45; <>plausibilis deserving applause, equiv. to plaus(us) (ptp. of plaudere to applaud) + -ibilis -ible]
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plau·si·bil·i·ty, plau·si·ble·ness, noun
plau·si·bly, adverb
—Synonyms 1. Plausible, specious describe that which has the appearance of truth but might be deceptive. The person or thing that is plausible strikes the superficial judgment favorably; it may or may not be true: a plausible argument (one that cannot be verified or believed in entirely). Specious definitely implies deceit or falsehood; the surface appearances are quite different from what is beneath: a specious pretense of honesty; a specious argument (one deliberately deceptive, probably for selfish or evil purposes).
—Antonyms 1. honest, sincere.
in·val·u·a·ble [in-val-yoo-uh-buhl] Pronunciation Key - Show IPA Pronunciation
l] Pronunciation Key - Show IPA Pronunciation –adjective
| beyond calculable or appraisable value; of inestimable worth; priceless: an invaluable art collection; her invaluable assistance. |
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