彼は性格がおとなしい。

彼は性格がおとなしい。

He has a mild nature.

彼(かれ)は性格(せいかく)がおとなしい。

Kare wa seikaku ga otonashii.

彼 (かれ)

he; him; his; boyfriend

は (は)

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

性格 (せいかく)

character; personality; disposition; nature

が (が)

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

大人しい (おとなしい)

obedient; docile; quiet

Readings: ヒ、かれ、かの、か.の

Meanings: he, that, the

Readings: セイ、ショウ、さが

Meanings: sex, gender, nature

Readings: カク、コウ、キャク、ゴウ

Meanings: status, rank, capacity, character, case (law, grammar)