1
natural;right;proper;just;reasonable;appropriate;deserved
彼が息子の自慢をするのは当然だ。
It is only natural that he be proud of his son.
2
naturally;as a matter of course;rightly;deservedly;justly;of course
ボルボ衝突したので、うちの車の方が当然ひどい目にあった。
In the collision with a Volvo, our car naturally got the worst of it.
Other forms
当前 【とうぜん】 (ateji (phonetic) reading) (rarely used kanji form)