Adjectives (agreement and position)

Spanish adjectives are a system, not a vocabulary. There are three things to learn about every adjective: its gender forms (masculine and feminine), its number forms (singular and plural), and its position (before or after the noun). Two are mostly mechanical. The third — position — takes years of reading to internalise.

Agreement: gender and number

The Spanish rule is regular. An adjective ends in either -o (masculine singular, changing to -a for feminine) or -e / consonant (same form for both genders).

Type 1: adjectives ending in -o

These have four forms.

So un libro alto / una mujer alta / los libros altos / las mujeres altas.

Type 2: adjectives ending in -e

These have only two forms: same for both genders in the singular, -s in the plural.

So un libro grande / una casa grande / libros grandes / casas grandes.

Type 3: adjectives ending in a consonant

Same as Type 2: invariable in gender, add -es for plural.

So un hombre feliz / una mujer feliz / hombres felices / mujeres felices.

Some consonant-ending adjectives have special feminine forms for nationality and -dor:

Position: most adjectives follow the noun

The default position for Spanish adjectives is after the noun.

una casa grande — a big house un libro interesante — an interesting book ideas originales — original ideas

Most adjectives describing colour, shape, material, nationality, religion, or any technical property go after.

una bandera española, una caja redonda, una mesa de madera, un camino difícil

Position: a small group goes before

A short, closed list of common adjectives sits before the noun. The mnemonic is the same as in French — BAGS (Beauty, Age, Goodness, Size).

un buen amigo (apocopated) un mal día (apocopated) un gran libro (apocopated) el primer ministro (apocopated) una pequeña casa una hermosa mujer

Apocope (shortened forms before masculine singular nouns)

A handful of common pre-noun adjectives shorten before a masculine singular noun. After the noun or in plural, the full form returns.

un buen hombre (m. sg. — shortened to buen) una buena mujer (f. sg. — full form buena) los buenos amigos (plural — full form buenos) un mal día (m. sg. — shortened)

Grande is special: it shortens to gran before both masculine and feminine singular nouns.

un gran hombre / una gran mujer grandes hombres / grandes mujeres (no apocope in plural)

When both positions are possible

Some adjectives can sit on either side, with different meanings:

The position changes the meaning. This is one of the most surprising parts of the system for English speakers.

Comparative and superlative

For comparing adjectives, Spanish uses más, menos, tan/tanto. See comparativo-y-superlativo.

What you don’t need to do

You don’t need to memorise the BAGS list. After a year of reading Spanish, gran hombre / hombre grande will feel different the way great man / tall man feels different in English.

You don’t need to handle every position-meaning shift on the spot. The pairs become natural through reading.

You don’t need to use apocope perfectly at A1. Un bueno hombre is wrong, but Spanish speakers will understand you. Drill the common ones (buen, gran, mal, primer) and the rest will follow.

Common confusions

• The default is after, not before. Like French and Italian, Spanish puts most adjectives after the noun. Resist the English default.
• Buen (before m. sg.) vs. bueno (after, or feminine). Un buen amigo (before m. sg.) but un amigo bueno (after) and una buena amiga (before f. sg., no apocope).
• Gran shortens for both genders. Un gran hombre and una gran mujer. But the plural restores: grandes hombres, grandes mujeres.
• Color goes after. Un coche rojo, never un rojo coche. Same for nationality: un libro español, una mujer francesa.
• Position changes meaning. Un viejo amigo (longtime friend) is not un amigo viejo (elderly friend).

Where you’ll meet it in the library

Adjective placement is everywhere; the texts that show it most cleanly:

• Don Quijote (A2+) — Cervantes’s prose lavishly describes characters and objects. Don Quijote himself is described with chains of adjectives (alto, flaco, viejo), and his vision of the world (hermosa, grande, valiente, noble) collides with Sancho’s grounded vocabulary (pobre, sencillo, real).