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WORDNET DICTIONARY
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THESAURUS

WORDNET DICTIONARY

Adverbial rationally has 1 sense

• rationally(r = adv.all) Array - in a rational manner; "we must act rationally"
Antonym: irrationally

CIDE DICTIONARY

THESAURUS

rationally

analytically, artfully, astutely, circumspectly, cleverly, considerately, cunningly, discerningly, discreetly, in all conscience, in all reason, in reason, intelligently, judiciously, knowingly, logically, providently, prudently, reasonably, sagaciously, sanely, sensibly, shrewdly, smartly, soundly, syllogistically, thoughtfully, understandingly, wisely, within bounds, within reason, within reasonable limitations

For further exploring for "rationally" in Webster Dictionary Online