彼は頭でっかちだ。

Sentence Analyzer

頭でっかち

English Translation

He is an armchair theorist.

Furigana

(かれ)(あたま)でっかちだ。

Romanji

Kare wa atamadekkachi da.

Words

(かれ)
he; him; his; boyfriend
()
topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis
頭でっかち (あたまでっかち)
top-heavy; big-headed
()
be; is; indicates past or completed action; indicates light imperative

Kanji

Readings: ヒ、 かれ、 かの、 か.の
Meanings: he, that, the
Readings: トウ、 ズ、 ト、 あたま、 かしら、 -がしら、 かぶり
Meanings: head, counter for large animals