A grammatical term for words that undergo inflection, especially verbs and adjectives whose forms change.
動詞や形容詞は活用語に分類され、名詞は基本的に活用語ではない。
Verbs and adjectives are classified as inflecting words, while nouns generally are not.
古典文法では活用語の活用形を覚えることが重要だ。
In classical grammar, memorizing the inflectional forms of inflecting words is important.
日本語学習者はまず主要な活用語の変化を練習すると良い。
Japanese learners should first practice the conjugations of the main inflecting words.