Gender of Adjectives in Spanish

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Forming Masculine or Feminine Adjectives

• Masculine adjectives end in -o. To form feminine adjectives drop the -o and add -a.
• To form the plural of masculine and feminine adjectives add -s.

Gender of Adjectives Table in Spanish

Singular	Plural	Meaning
Bueno-Buena	Buenos-Buenas	Good
Bonito-Bonita	Bonitos-Bonitas	Beautiful
Delicioso-Deliciosa	Deliciosos-Deliciosas	Delicious
Feo-Fea	Feos-Feas	Ugly
Perezoso-Perezosa	Perezosos-Perezosas	Lazy
Rico-Rica	Ricos-Ricas	Tasty/Rich

Examples:
Marcos es una persona buena.
Marcos is a good person.

Carmen hace pasteles deliciosos.
Carmen makes delicious cakes.

Note:

• Some adjectives in Spanish have a single form of masculine and feminine. If the adjectives end in a vowel add -s to make it a plural, if it ends in a consonant add -es for the plural.

Single Form Gender of Adjectives Table in Spanish

Single Form	Plural	Meaning
Agradable	Agradables	Pleasant
Débil	Débiles	Weak
Difícil	Difíciles	Difficult/Hard
Fácil	Fáciles	Easy
Feliz	Felices	Happy
Fuerte	Fuertes	Strong
Interesante	Interesantes	Interesting
Optimista	Optimistas	Optimistic

Examples:
Sofia y Pamela son personas agradables.
Sofia y Pamela are pleasant people.

Juan es un niño muy feliz.
Juan is a happy child.

• The adjectives of nationality that end in -o are masculine to make it feminine add -a. Unlike English, they are not capitalized.
  
  Examples:
  panameño/panameña (Panamanian)
  brasileño/brasileña (Brazilian)
  argentino/argentina (Argentinian)