noun
inflecting word; inflectional word
A grammatical term referring to words that undergo inflection, such as verbs, adjectives, and auxiliary verbs in Japanese.
日本語の活用語には動詞や形容詞が含まれる。
Inflecting words in Japanese include verbs and adjectives.
無活用語 refers to non-inflecting words, the opposite of 活用語.
Compound of 活用 (inflection) and 語 (word). The term is a modern linguistic coinage.