"rational" Definition

Definitions for the word "rational" from multiple English dictionaries.

1. a.
Relating to the reason; not physical; mental.
Source: The 1913 Webster Unabridged Dictionary, 1913
2. a.
Having reason, or the faculty of reasoning; endowed with reason or understanding; reasoning.
Source: The 1913 Webster Unabridged Dictionary, 1913
3. a.
Agreeable to reason; not absurd, preposterous, extravagant, foolish, fanciful, or the like; wise; judicious; as, rational conduct; a rational man.
Source: The 1913 Webster Unabridged Dictionary, 1913
4. a.
Expressing the type, structure, relations, and reactions of a compound; graphic; -- said of formulae. See under Formula.
Source: The 1913 Webster Unabridged Dictionary, 1913
5. n.
A rational being.
Source: The 1913 Webster Unabridged Dictionary, 1913
6. adj.
1 of or based on reason. 2 sensible. 3 endowed with reason. 4 rejecting what is unreasonable or cannot be tested by reason in religion or custom. 5 (of a quantity or ratio) expressible as a ratio of whole numbers. rationality n. Rationally adv. [latin: related to *ration]
Source: Oxford English Dictionary, 1884

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Additional Info
This page provides a list of definitions and meanings for "rational" from various historical English dictionaries. By displaying multiple definitions, you can compare and contrast different meanings and nuances of a word, phrase, or slang. You can also see the changes in meaning of "rational" over time by viewing the definitions from different dictionaries published at different times in history. The page also includes other information to help users expand their vocabulary and understand the context of the word.

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