Definition of rational
- a rational explanation
- rational behavior
- a rational root of an equation
human beings are rational creatures
insisted there was a rational explanation for the strange creaking noises and that there were no such things as ghosts
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'rational.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
commonsense, commonsensible, commonsensical, firm, good, hard, informed, just, justified, levelheaded, logical, reasonable, reasoned, sensible, sober, solid, valid, well-founded;
groundless, illogical, invalid, irrational, nonrational, nonsensical, nonvalid, unfounded, uninformed, unjustified, unreasonable, unreasoned, unsound;
1601
: based on facts or reason and not on emotions or feelings
: having the ability to reason or think about things clearly
See words that rhyme with rational Thesaurus: All synonyms and antonyms for rational Spanish Central: Translation of rational Nglish: Translation of rational for Spanish speakers Britannica English: Translation of rational for Arabic speakers
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