Obvious or self-evident; so clear that no further explanation or proof is needed.
前提が正しければ結論は自明だ。
If the premises are correct, the conclusion is self-evident.
その説明が不十分なら自明とは言えない。
If that explanation is insufficient, it can't be called self-evident.
この事実は直感的に自明のように思えるが、慎重に検証する必要がある。
This fact seems intuitively obvious, but it needs to be carefully verified.