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Word a Day

irrational

adjective · /ɪˈɹæʃənəl/ · Level 2 · Intermediate

What does irrational mean?

irrational (adjective): not consistent with or using reason.

Definition: Princeton WordNet 3.1.

How do you use irrational in a sentence?

How do you pronounce irrational?

/ɪˈɹæʃənəl/ (IPA, American English). The app reads every word aloud.

Where does irrational come from?

From Latin irratiōnālis, from ir- + ratiōnālis.

Etymology: Wiktionary, CC BY-SA 4.0.

What are antonyms of irrational?

Words related to irrational

From Princeton WordNet 3.1.

Test yourself: do you know “irrational”?

Tap an answer to check it. The same questions the app asks.

What does “irrational” mean?

feeling sorrow; sorrowful, mournful

Not quite: that's what sad means.

not able; lacking a certain ability

Not quite: that's what unable means.

at or constituting a border or edge

Not quite: that's what marginal means.

not consistent with or using reason

Right! That's what “irrational” means.

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