Lesson 6: Adjectives — agreement, position, bello/buono

Part 1: The basic agreement rule

An adjective agrees with its noun in gender and number.

English doesn't do this at all: "a red car", "red cars", "red houses" — the adjective never moves. Italian does, every time. Take the adjective rosso ("red"):

	Singular	Plural
Masculine	il libro rosso (the red book)	i libri rossi
Feminine	la casa rossa (the red house)	le case rosse

Four forms: rosso, rossa, rossi, rosse. The adjective copies the same vowel as the noun.

Notice: the article agrees too. You get "triples" — article + noun + adjective — all three matched.

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Part 2: Two patterns of adjective

Pattern I — four forms (-o / -a / -i / -e)

The majority of adjectives. Dictionary form ends in -o (masculine singular):

M.sg.	F.sg.	M.pl.	F.pl.
rosso	rossa	rossi	rosse
alto	alta	alti	alte
nuovo	nuova	nuovi	nuove
italiano	italiana	italiani	italiane

Pattern II — two forms (-e / -i)

Adjectives ending in -e in the singular don't distinguish gender — one form for m./f. singular, one form for m./f. plural (in -i):

M.sg. = F.sg.	M.pl. = F.pl.
grande	grandi
verde	verdi
intelligente	intelligenti
giovane	giovani
francese	francesi

Examples:

• il libro grande / la casa grande / i libri grandi / le case grandi
• un ragazzo intelligente / una ragazza intelligente / ragazzi intelligenti / ragazze intelligenti

Remember: the -e ending in the singular is masculine or feminine — same form. Don't be alarmed that grande doesn't change between libro and casa. That's the whole point of pattern II.

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Part 3: Position — usually after the noun

In English, the adjective comes before: "red car", "new house", "interesting book". Italian is the opposite — adjectives go after:

• una macchina rossa — a red car (literally "a car red")
• un libro interessante — an interesting book ("a book interesting")
• una città italiana — an Italian city
• una ragazza simpatica — a nice girl

The big shift for English speakers: your instinct will be to say una rossa macchina. That sounds odd to an Italian and sometimes changes the meaning. Train yourself to say "noun → adjective." This is by far the biggest mental flip in this lesson — bigger than the endings.

Adjectives that often sit before the noun

A small set of short, common, evaluative adjectives can sit before the noun. In the before position they often carry a generalised, evaluative flavour; in the after position they describe something concretely:

Adjective	Before / after	Example
buono (good)	often before	un buon amico
bello (beautiful)	often before	una bella casa
grande (big, great)	often before	una grande città
piccolo (small)	often before	una piccola casa
vecchio (old)	often before	un vecchio amico
giovane (young)	usually after	un uomo giovane
nuovo (new)	often before	una nuova macchina

A fine point — don't memorise now, just notice: un vecchio amico = "an old friend" (long-standing), while un amico vecchio = "a friend who is elderly". una grande donna = "a great woman", while una donna grande = "a large woman". This is a late-A2 nuance; for now, just imitate the examples.

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Part 4: Bello and buono — endings "like the article"

When bello and buono sit before the noun, their endings follow the same logic as the definite/indefinite article (back to L3): they adapt to the first sound of the next word.

Buono before a noun = like the indefinite article

Before what	Form	Example
m. before most consonants	buon	un buon libro, un buon amico
m. before s+cons. / z / ps / gn	buono	un buono studente, un buono zio
f. before a consonant	buona	una buona idea, una buona pizza
f. before a vowel	buon'	una buon'amica

Compare with the article: un libro / uno studente / una idea / un'amica — exactly the same logic.

Bello before a noun = like the definite article

Article	Bello	Example
il	bel	il bel libro
lo	bello	il bello specchio
l' (m.)	bell'	il bell'amico
la	bella	la bella casa
l' (f.)	bell'	la bell'idea
i	bei	i bei libri
gli	begli	i begli specchi, i begli amici
le	belle	le belle case

The logic: bello before a noun "copies the tail" of the definite article. Bello → bel → bei, just like lo → il → i. Bello → bello → begli, just like lo → lo → gli. It's not a new list of endings — it's the same table from L3.

When bello and buono go after the noun — normal four forms

• un libro bello / una casa bella / libri belli / case belle
• un caffè buono / una pizza buona / caffè buoni / pizze buone

The special forms apply only in the pre-noun position.

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Part 5: Colours — mostly pattern I, plus a few oddities

Most colour adjectives change in four forms:

Dictionary (m.sg.)	F.sg.	M.pl.	F.pl.
rosso (red)	rossa	rossi	rosse
nero (black)	nera	neri	nere
bianco (white)	bianca	bianchi*	bianche*
giallo (yellow)	gialla	gialli	gialle
azzurro (blue, light blue)	azzurra	azzurri	azzurre

*bianchi, bianche: to keep the hard "k" sound, the spelling inserts an h (remember L1: che/chi = hard, ce/ci = soft). The sound is unchanged — this is a spelling-only adjustment. All adjectives in -co/-ca behave the same way: simpatico → simpatici, simpatica → simpatiche.

A few colours end in -e (pattern II):

Word	Plural
verde (green)	verdi
marrone (brown)	marroni
arancione (orange)	arancioni

And a few invariable ones (just memorise; there aren't many):

Word	Behaviour
blu (blue)	doesn't change: un libro blu, una casa blu, libri blu, case blu
rosa (pink)	doesn't change
viola (purple)	doesn't change

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