JLPT N2
て当然だ（てとうぜんだ）
natural; as a matter of course; no wonder ~
Structure / Usage
Verb (て form) + 当然だ
Example Sentences
練習しなかったのだから、負けて当然だ。
Since you didn't practice, it's only natural you lost.
あんなに頑張ったのだから、受かって当然だ。
Since you worked so hard, it's only natural you passed.