Last Updated：2025/11/23
adjectival noun, a specific Japanese part of speech. Some of these words can be used as regular nouns, and all can be used as adjectives when followed by the postfix な (na), in contrast to Japanese common adjectives, 形容詞 (keiyōshi). In Japanese grammar, these words are categorized as 形容動詞 (keiyō dōshi).
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quasi-adjective
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Source Word
quasi-adjective
Noun
adjectival
noun,
a
specific
Japanese
part
of
speech.
Some
of
these
words
can
be
used
as
regular
nouns,
and
all
can
be
used
as
adjectives
when
followed
by
the
postfix
な
(na),
in
contrast
to
Japanese
common
adjectives,
形容詞
(keiyōshi).
In
Japanese
grammar,
these
words
are
categorized
as
形容動詞
(keiyō
dōshi).
Japanese Meaning
形容動詞 - 日本語において、名詞としての使い方だけでなく、語尾に「な」をつけることで形容詞的な働きをする品詞。 / 形容名詞 - 一般的な名詞と違い、形容詞としても機能するため、通常の名詞と形容詞の特徴を併せ持つ語。
Sense（1）
adjectival
noun,
a
specific
Japanese
part
of
speech.
Some
of
these
words
can
be
used
as
regular
nouns,
and
all
can
be
used
as
adjectives
when
followed
by
the
postfix
な
(na),
in
contrast
to
Japanese
common
adjectives,
形容詞
(keiyōshi).
In
Japanese
grammar,
these
words
are
categorized
as
形容動詞
(keiyō
dōshi).
（ plural ）
