LESSON 6 · Unit II — The Noun System · ~40 minutes
By the End of This Lesson

How Adjectives Agree

In English, adjectives don't change form: 'the good man,' 'the good woman,' 'the good men,' 'the good women' — 'good' is identical in all four. In Greek, the adjective agrees with its noun in three categories at once: gender, number, and case.

So 'good' has 24 possible forms — masculine/feminine/neuter × singular/plural × four cases. The good news: most adjective endings are exactly the same as the endings you've already learned for 1st and 2nd declension nouns.

The 2-1-2 Adjective Pattern

Most adjectives use 2nd declension endings for masculine and neuter, and 1st declension endings for feminine. Hence "2-1-2." The full paradigm of καλός, καλή, καλόν ("good, beautiful").

καλός, καλή, καλόν — 'good, beautiful'
Masculine (2nd decl) Feminine (1st decl) Neuter (2nd decl)
sgpl sgpl sgpl
Nom καλόςκαλοί καλήκαλαί καλόνκαλά
Gen καλοῦκαλῶν καλῆςκαλῶν καλοῦκαλῶν
Dat καλῷκαλοῖς καλῇκαλαῖς καλῷκαλοῖς
Acc καλόνκαλούς καλήνκαλάς καλόνκαλά
Lexical convention Adjectives are listed in dictionaries by their three nominative singular forms: καλός, ή, όν (masc, fem, neut). When you see this format, the second and third entries show only the endings — the stem stays the same.

A few adjectives use 2-2-2 (no separate feminine form, just M/F together and N): αἰώνιος, ον ('eternal'). Listed with two endings means M/F share the masculine forms, only the neuter differs.

The Three Positions

An adjective can stand in three positions relative to its noun. Each conveys a different meaning. This is the most important concept in this lesson.

Adjective Position Summary
PositionPatternExampleMeaning
Attributive (1st) article + adj + noun ὁ καλὸς λόγος "the good word"
Attributive (2nd) article + noun + article + adj ὁ λόγος ὁ καλός "the good word" (slightly emphatic)
Predicate adj + article + noun (or article+noun+adj, no second article) καλὸς ὁ λόγος "the word is good"
⚠ The decisive rule The adjective is attributive if it sits inside the article-noun group; predicate if it sits outside.

Compare: ὁ καλὸς λόγος = "the good word" (a noun phrase). ὁ λόγος καλός = "the word [is] good" (a complete sentence — Greek doesn't need 'is').

The article placement is what changes the meaning. If the adjective is preceded by an article, it's attributive. If it stands alone (no article in front of it, even though there's an article in front of the noun), it's predicate.

Substantival Use — Adjectives as Nouns

An adjective with an article but no noun functions as a noun in its own right. The gender tells you what kind of person or thing.

ὁ ἀγαθός
— ho agathos
"the good [man]" — masculine, so "the good man" or just "the good [person]." Article + adjective alone, with the noun left implied.
οἱ ἅγιοι
— hoi hagioi
"the holy ones" = "the saints." Masculine plural — Paul's standard term for believers.
τὸ ἀγαθόν
— to agathon
"the good [thing]" — neuter, so "the good" as an abstract concept. Frequent in Romans 7.
οἱ νεκροί
— hoi nekroi
"the dead [ones]" — i.e. "the dead." Masculine plural.

Sentences with Adjectives

ὁ ἀγαθὸς ἄνθρωπος ἀκούει τοὺς λόγους τοῦ θεοῦ.
— ho agathos anthrōpos akouei tous logous tou theou.
"The good man hears the words of God." Adjective in attributive position (article + adj + noun).
ὁ ἄνθρωπος ἀγαθός.
— ho anthrōpos agathos.
"The man is good." Predicate — no article in front of the adjective. Greek omits 'is' freely.
ἡ καινὴ ἐντολὴ ἡ καλή
— hē kainē entolē hē kalē
"the new commandment, the good [one]" — second attributive position, with two adjectives stacked.
μακάριοι οἱ πτωχοί.
— makarioi hoi ptōchoi.
"Blessed [are] the poor." The first beatitude (Matt 5:3, paraphrased). μακάριοι is predicate (no article in front); οἱ πτωχοί is substantival ("the poor [ones]"). Word order is reversed for emphasis — "Blessed!" comes first.

Translation Exercises

Translate, paying attention to position
  1. ὁ πιστὸς δοῦλος ἔχει τὴν αἰώνιον ζωήν.
  2. ὁ δοῦλος πιστός.
  3. οἱ μαθηταὶ βλέπουσι τὰ καλὰ ἔργα τοῦ Ἰησοῦ.
  4. ὁ θεὸς ἀγαθός, καὶ ὁ νόμος αὐτοῦ ἅγιος.
  5. ἀγαπῶμεν τοὺς ἀγαπητοὺς ἀδελφούς. [ἀγαπῶμεν = "we love"]
Answers 1. The faithful slave has eternal life. (Both adjectives attributive.)
2. The slave is faithful. (Predicate — no article on πιστός.)
3. The disciples see the good works of Jesus.
4. God is good, and his law is holy. (Both predicate. Note αὐτοῦ = "his.")
5. We love the beloved brothers.
Watch — Bill Mounce companion lecture
BBG Ch 9
BBG Ch 9 Adjectives Open on YouTube ↗

The 2-1-2 paradigm, attributive vs predicate position, and substantival use.

Practice — drill the concepts

Six drill sets for adjectives — concept basics, the καλός paradigm, the three positions (attributive/predicate/substantival), agreement with the noun, and translating sentences where position carries the meaning.

Vocabulary — Lesson 6 17 adjectives
GreekTranslit.Meaning
ἀγαθός, ή, όνagathosgood
ἅγιος, α, ονhagiosholy; (pl) saints
ἀγαπητός, ή, όνagapētosbeloved
αἰώνιος, ονaiōnioseternal (2-termination)
ἄλλος, η, οallosother (of same kind)
δίκαιος, α, ονdikaiosrighteous, just
ἕτερος, α, ονheterosother (of different kind)
ἴδιος, α, ονidiosone's own
καινός, ή, όνkainosnew (in quality)
κακός, ή, όνkakosbad, evil
καλός, ή, όνkalosgood, beautiful
μέγας, μεγάλη, μέγαmegasgreat, large (irregular)
μόνος, η, ονmonosonly, alone
νεκρός, ά, όνnekrosdead
πιστός, ή, όνpistosfaithful, believing
πονηρός, ά, όνponērosevil, wicked
πρῶτος, η, ονprōtosfirst