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Greek adjective · G249

ἄλογος

alogosal'-og-os

without reason, irrational; contrary to reason

3 uses in the Greek text, one for each word STEP Bible has tagged with this key

Concordance spelling: álogos

Word page · Part of the concordance, one page for every word of the Hebrew and Greek text. Strong's G249is this word's number in James Strong's 1890 index of the King James Bible.

  • 3 of 27
    New Testament books
  • 2
    spellings
  • 2
    meanings

The definition in full

Strong's key (1890) · G249

irrational

The King James renders it: brute, unreasonable.

James Strong, The Exhaustive Concordance of the Bible (1890), public domain. Strong indexed the King James text, and this site quotes his entry as that index.

Summary

alogos is rendered "without reason, irrational; contrary to reason". It stands 3 times in the Greek text, across three books.

  • One of the uses stand in Acts, more than in any other book.
  • The lexicon lists two meanings for it, beginning with "without reason, irrational".
  • Its first use in canonical order opens the ledger below.Acts 25:27For it seems unreasonable to me to send on a prisoner without specifying the charges against him.”
  • The Greek text spells it two different ways.

The first use

For it seems unreasonable to me to send on a prisoner without specifying the charges against him.”

Acts 25:27ἄλογον

The first use, in the order of the New Testament's books.

Where the word stands

One of the word's three uses is in Acts.

The other 24 New Testament books never use the word.

What the word means

The lexicons give this word two senses, and a verse uses one of them at a time: without reason, irrational, and contrary to reason.

Each meaning, and the words it is translated by

The English STEP Bible gives each use, word by word, and how many times.
without reason, irrationalζῷα, 2Pe.2:12, Ju 10.Tagged as
  • irrational2
Where2 Peter 2:12These men are like irrational animals, creatures of instinct, born to be captured and destroyed…
contrary to reasonAct.25:27 (see MM, VGT, see word).† (AS)Tagged as
  • Absurd1
WhereActs 25:27For it seems unreasonable to me to send on a prisoner without specifying the charges against…

The words built on the same word-part

Each word below begins with the same letters this one begins with. A shared word-part shows a family. It does not settle what any one of them means, so each word carries its own uses on its own page. Scholars call that shared part the stem.

All 3, in canonical order

Every use, in order

Every use, grouped by book, with its verse.

2 spellings and their grammar

STEP Bible tags every word of the Hebrew and Greek text with its spelling and its grammar. Both lists below count the rows printed underneath, written out in English, with the code beside each one as it was tagged.

How it is spelled

  • ἄλογα2
  • ἄλογον1

The grammar of each form

  • adjective · nominative (subject) · neuter plural2A-NPN
  • adjective · nominative (subject) · neuter singular1A-NSN

Acts

one use
  • For it seems unreasonable to me to send on a prisoner without specifying the charges against him.”

    Acts 25:27

    • ἄλογονalogonadjective · nominative (subject) · neuter singulartagged: Absurd

2 Peter

one use
  • These men are like irrational animals, creatures of instinct, born to be captured and destroyed. They blaspheme in matters they do not understand, and like such creatures, they too will be destroyed.

    2 Peter 2:12

    • ἄλογαalogaadjective · nominative (subject) · neuter pluraltagged: irrational

Jude

one use
  • These men, however, slander what they do not understand, and like irrational animals, they will be destroyed by the things they do instinctively.

    Jude 1:10

    • ἄλογαalogaadjective · nominative (subject) · neuter pluraltagged: irrational

Where it leads

How the numbers are counted

Every count on this page comes from STEP Bible's tagged Hebrew and Greek text, the same text the ledger prints. A use is counted once each time the tagging marks a word with this key.

Spellings are counted as the Greek text spells them, with the sentence's own punctuation taken off the word first, so a form that ends a clause is not counted as a second spelling.

Hebrew and Greek text, word tagging and grammar: STEP Bible (www.STEPBible.org), Tyndale House, CC BY 4.0. Their grammar codes are written out in English here and shown as tagged beside each one.

Meaning and senses: STEP Bible TBESG (Tyndale House, CC BY 4.0), the Brief lexicon based on Abbott-Smith (1922).

Dictionary key: Strong's Exhaustive Concordance of the Bible (1890, public domain). English verse text: Berean Standard Bible (public domain, 2023).

Revised 2026-09-05. Every cited work, the sources registry →