demonstrative adverb
A grammatical term for adverbs that indicate manner or degree in relation to the speaker, such as こう, そう, ああ, どう.
こう, そう, ああ, and どう are classified as demonstrative adverbs.
指示形容詞 are demonstrative adjectives (e.g., こんな, そんな) that modify nouns, while 指示副詞 are demonstrative adverbs that modify verbs or adjectives.
指示代名詞 are demonstrative pronouns (e.g., これ, それ) that stand in for nouns, whereas 指示副詞 function adverbially.
Compound of 指示 (demonstrative) and 副詞 (adverb). A modern linguistic term.