German adjectives describe properties or qualities of nouns, similar to English, but they must agree with the noun in gender, number, and case. They can be used attributively (before a noun), predicatively (after a verb), or substantivated (as nouns).
- Descriptive Adjectives: German descriptive adjectives change their endings based on the gender, number, and case of the noun they modify, and whether they are used with a definite article, indefinite article, or no article.
- Comparative and Superlative: German adjectives form comparatives by adding -er and superlatives by adding -(e)st or using a periphrastic form; both forms are used to show comparison and comparison at the highest degree.