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[ rash-uh-nl, rash-nl ] / ˈræʃ ə nl, ˈræʃ nl / SEE SYNONYMS FOR rational ON THESAURUS.COM
adjectiveagreeable to reason; reasonable; sensible: a rational plan for economic development. having or exercising reason, sound judgment, or good sense: a calm and rational negotiator. being in or characterized by full possession of one's reason; sane; lucid: The patient appeared perfectly rational. endowed with the faculty of reason: rational beings. of, relating to, or constituting reasoning powers: the rational faculty. proceeding or derived from reason or based on reasoning: a rational explanation. Mathematics. - capable of being expressed exactly by a ratio of two integers.
- (of a function) capable of being expressed exactly by a ratio of two polynomials.
Classical Prosody. capable of measurement in terms of the metrical unit or mora. nounMathematics. rational number. Origin of rationalFirst recorded in 1350–1400; Middle English racional, from Latin ratiōnālis, equivalent to ratiōn- (stem of ratiō) reason + -ālis-al1 SYNONYMS FOR rational2 intelligent, wise, judicious, sagacious, enlightened. SEE SYNONYMS FOR rational ON THESAURUS.COM ANTONYMS FOR rationalSEE ANTONYMS FOR rational ON THESAURUS.COM synonym study for rational6. See reasonable. OTHER WORDS FROM rationalra·tion·al·ly, adverbra·tion·al·ness, nounan·ti·ra·tion·al, adjectivean·ti·ra·tion·al·ly, adverb hy·per·ra·tion·al, adjectivehy·per·ra·tion·al·ly, adverbnon·ra·tion·al, adjectivenon·ra·tion·al·ly, adverbo·ver·ra·tion·al, adjectiveo·ver·ra·tion·al·ly, adverbpre·ra·tion·al, adjectivequa·si-ra·tion·al, adjectivequa·si-ra·tion·al·ly, adverbtrans·ra·tion·al, adjectivetrans·ra·tion·al·ly, adverbul·tra·ra·tion·al, adjectiveul·tra·ra·tion·al·ly, adverbun·ra·tion·al, adjectiveun·ra·tion·al·ly, adverb WORDS THAT MAY BE CONFUSED WITH rationalrational , reasonable (see synonym study at reasonable)Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for rationalWhen I fielded telephone calls, my attempts to rationally discuss the subject were complete failures. Rebels Rise Again Over Flag Banning|Robert Khayat|July 28, 2014|DAILY BEAST That is a message that might rationally resonate with independents, because it is rooted in fact. Policy Black Hole: Mitt Romney Keeps His Ideas To Himself|John Avlon|June 22, 2012|DAILY BEAST The rational mind of course is correct, rationally—but we are not rational animals. Circumcision’s Deadly Fault Line: Rationality vs. the Metzitzah B’Peh|Kent Sepkowitz|June 10, 2012|DAILY BEAST In Part 1, we learn that political opinions don't come from rationally developing arguments. David's Book Club: The Righteous Mind|Noah Kristula-Green|April 9, 2012|DAILY BEAST
Annie Martin is still too peeved to rationally discuss comic Steve Harvey. Steve Harvey's Bad Romance|Allison Samuels|February 16, 2011|DAILY BEAST It will not be easy to imagine any third mode materially different, which could rationally be proposed. The Federalist Papers|Alexander Hamilton, John Jay, and James Madison Few copies of the New Testament have been sold; yet what else could be rationally expected in these latter times? Letters of George Borrow|George Borrow Rationally conceived they are not only consonant with Determinism, but each of them implies it. Determinism or Free-Will?|Chapman Cohen We cannot rationally suppose that Adam was a stranger to his duty, either in its nature, manner, or extent. The Mosaic History of the Creation of the World|Thomas Wood Since he himself is the way, can we rationally conclude that he would do anything for a guide to us that is unimportant? Life and Labors of Elder John Kline, the Martyr Missionary|John Kline
British Dictionary definitions for rational
adjectiveusing reason or logic in thinking out a problem in accordance with the principles of logic or reason; reasonable of sound mind; sanethe patient seemed quite rational endowed with the capacity to reason; capable of logical thoughtman is a rational being maths expressible as a ratio of two integers or polynomialsa rational number; a rational function Derived forms of rationalrationally, adverbrationalness, nounWord Origin for rationalC14: from Latin ratiōnālis, from ratiō reason Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Words related to rationallevelheaded, sensible, wise, normal, impartial, lucid, deliberate, logical, judicious, thoughtful, sane, reasonable, stable, balanced, analytical, enlightened, prudent, intelligent, sober, knowing Medical definitions for rational
adj.Having or exercising the ability to reason. Influenced by reasoning rather than by emotion. Of sound mind; sane. Based on scientific knowledge or theory rather than practical observation. The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company. |