nieracjonalny.
irrational (not logically sound)
Meaning & usage
irrational (not logically sound)
unreasonable
Where this word comes from
Etymology tree Proto-Indo-European *né Proto-Balto-Slavic *ne Proto-Slavic *ne Old Polish nie Old Polish nie- Polish nie- Proto-Indo-European *h₂er- Proto-Indo-European *-éh₁ti Proto-Indo-European *h₂reh₁- Proto-Italic *rēōr Latin reor Latin ratus Proto-Indo-European *-tis Proto-Indo-European *-Hō Proto-Indo-European *-tiHō Proto-Italic *-tiō Latin -tiō Latin ratiō Proto-Indo-European *h₂el- Proto-Indo-European *-is Proto-Indo-European *h₂élisder.? Proto-Italic *-ālis Latin -ālis Latin ratiōnālisbor. Proto-Indo-European *-nós Proto-Balto-Slavic *-inas Proto-Slavic *-ьnъ Old Polish -ny Polish -ny Polish racjonalny Polish nieracjonalny From nie- + racjonalny.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.