ra·tion·al·ism

[rash-uh-nl-iz-uhm]
noun
1.
the principle or habit of accepting reason as the supreme authority in matters of opinion, belief, or conduct.
2.
Philosophy.
a.
the doctrine that reason alone is a source of knowledge and is independent of experience.
b.
(in the philosophies of Descartes, Spinoza, etc.) the doctrine that all knowledge is expressible in self-evident propositions or their consequences.
3.
Theology. the doctrine that human reason, unaided by divine revelation, is an adequate or the sole guide to all attainable religious truth.
4.
Architecture, ( often initial capital letter )
a.
a design movement principally of the mid-19th century that emphasized the development of modern ornament integrated with structure and the decorative use of materials and textures rather than as added adornment.
b.
the doctrines and practices of this movement. Compare functionalism ( def 1 ).

Origin:
1790–1800; rational + -ism

ra·tion·al·ist, noun
ra·tion·al·is·tic, ra·tion·al·is·ti·cal, adjective
ra·tion·al·is·ti·cal·ly, adverb
an·ti·ra·tion·al·ism, noun
an·ti·ra·tion·al·ist, noun, adjective
an·ti·ra·tion·al·is·tic, adjective
non·ra·tion·al·ism, noun
non·ra·tion·al·ist, noun
non·ra·tion·al·is·tic, adjective
non·ra·tion·al·is·ti·cal, adjective
non·ra·tion·al·is·ti·cal·ly, adverb
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
Cite This Source Link To rationalist
00:10
Rationalist is always a great word to know.
So is flibbertigibbet. Does it mean:
a chattering or flighty, light-headed person.
a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question.
Collins
World English Dictionary
rationalism (ˈræʃənəˌlɪzəm) [Click for IPA pronunciation guide]
 
n
1.  reliance on reason rather than intuition to justify one's beliefs or actions
2.  philosophy
 a.  the doctrine that knowledge about reality can be obtained by reason alone without recourse to experience
 b.  the doctrine that human knowledge can all be encompassed within a single, usually deductive, system
 c.  the school of philosophy initiated by Descartes which held both the above doctrines
3.  the belief that knowledge and truth are ascertained by rational thought and not by divine or supernatural revelation
 
'rationalist
 
n
 
rational'istic
 
adj
 
rational'istically
 
adv

rationalism (ˈræʃənəˌlɪzəm) [Click for IPA pronunciation guide]
 
n
1.  reliance on reason rather than intuition to justify one's beliefs or actions
2.  philosophy
 a.  the doctrine that knowledge about reality can be obtained by reason alone without recourse to experience
 b.  the doctrine that human knowledge can all be encompassed within a single, usually deductive, system
 c.  the school of philosophy initiated by Descartes which held both the above doctrines
3.  the belief that knowledge and truth are ascertained by rational thought and not by divine or supernatural revelation
 
'rationalist
 
n
 
rational'istic
 
adj
 
rational'istically
 
adv

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
Example sentences
Do you have any empirical evidence for this, or is this merely a rationalist speculation.
Discusses a rationalist approach to curriculum and the inherent underlying organizational premises.
The rationalist will reject faith entirely out of principle.
But the terrified exclamation of a rationalist who takes a closer look at history.
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