Standard Lemma guide

unreasonable

adj · 4 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • /ʌnˈɹiːz.(ə)nə.bl̩/
  • UK: Recorded audio is listed in the source snapshot.
  • CMU ARPABET: AH0 N R IY1 Z N AH0 B AH0 L Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

adj

Meaning 1

Without the ability to reason; unreasoning.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

adj

Meaning 2

Not reasonable; going beyond what could be expected or asked for.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: reasonable

3

adjective

Meaning 3

not reasonable; not showing good judgment

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: reasonable

4

adjective satellite

Meaning 4

beyond normal limits

Definition source: Princeton WordNet 3.0

Examples

  • excessive charges
  • a book of inordinate length
  • his dress stops just short of undue elegance
  • unreasonable demands

Meaning relationships

Synonyms: excessive, inordinate, undue

Antonyms: none provided

History

Etymology

From Middle English unresonable, equivalent to un- + reasonable, originally partly after Latin irratiōnābilis.

Across languages

Translations

27 source translations are retained for this English entry.

  • Bulgarian: нерезонен (nerezonen) — not reasonable
  • Danish: urimelig — not reasonable
  • Esperanto: senracia — not reasonable
  • Finnish: kohtuuton — not reasonable
  • French: déraisonnable — not reasonable
  • German: unvernünftig — not reasonable
  • German: kompromisslos — not reasonable
  • German: nicht nachvollziehbar — not reasonable
  • German: unklug — not reasonable
  • German: übertrieben — not reasonable
  • German: unmäßig — not reasonable
  • Ancient Greek: ἄλογος (álogos) — not reasonable
  • Italian: irragionevole — not reasonable
  • Latin: irratiōnābilis — not reasonable
  • Manx: meeresoonagh — not reasonable
  • Manx: neuresoonagh — not reasonable
  • Plautdietsch: onveninftich — not reasonable
  • Polish: nierozsądny — not reasonable
  • Portuguese: insensato — not reasonable
  • Portuguese: irracional — not reasonable
  • Romanian: nerezonabil — not reasonable
  • Russian: неразу́мный (nerazúmnyj) — not reasonable
  • Spanish: irrazonable — not reasonable
  • Swedish: orimlig — not reasonable
  • Swedish: oresonlig — not reasonable
  • Telugu: నిష్కారణము (niṣkāraṇamu) — not reasonable
  • Welsh: afresymol — not reasonable
Real reading context

unreasonable in complete knowledge articles