当たり前だろ。

当たり前だろ。

Obviously.

当(あ)たり前(まえ)だろ。

Atarimae daro.

当たり前 (あたりまえ)

natural; reasonable; obvious; usual; common; ordinary; commonplace; the norm

だ (だ)

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

Readings: トウ、あ.たる、あ.たり、あ.てる、あ.て、まさ.に、まさ.にべし

Meanings: hit, right, appropriate, himself

Readings: ゼン、まえ、 -まえ

Meanings: in front, before