頭あたまでっかち頭でっかち表記・読み：あたまでっかち1top-heavy形容動詞nouns which may take the genitive case particle 'no'名詞2big-headed形容動詞nouns which may take the genitive case particle 'no'名詞3overly-theoretical形容動詞nouns which may take the genitive case particle 'no'名詞札へ残す語をコピー