彼は気が沈んでいるようだ。

彼は気が沈んでいるようだ。

He seems to be in a dark humor.

彼(かれ)は気(き)が沈(しず)んでいるようだ。

Kare wa ki ga shizundeiru yō da.

彼 (かれ)

he; him; his; boyfriend

は (は)

topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis

気 (き)

spirit; mind; heart; nature; disposition; motivation; intention; mood; feelings; atmosphere; essence

が (が)

indicates sentence subject (occasionally object); indicates possessive (esp. in literary expressions); but; however; still; and

沈む (しずむ)

to sink; to go under; to submerge; to go down (e.g. sun); to set; to descend; to feel depressed

様 (よう)

appearing ...; looking ...; way to ...; method of ...ing; form; style; design; like; similar to; thing (thought or spoken)

だ (だ)

be; is; indicates past or completed action; indicates light imperative

Readings: ヒ、かれ、かの、か.の

Meanings: he, that, the

Readings: キ、ケ、いき

Meanings: spirit, mind, air, atmosphere, mood

Readings: チン、ジン、しず.む、しず.める

Meanings: sink, be submerged, subside, be depressed, aloes