無し

無し

"無し" means "without" or "none."

The word '無し' is used to indicate the absence of something (a warranty in this case).

この商品は保証無しです。

This product comes without a warranty.

Here, '無し' indicates the lack or absence of a reason.

彼は理由無しに怒った。

He got angry without reason.

In this case, '無し' is paired with 'ではありません' to express that risks exist, refuting absence.

その提案はリスク無しではありません。

That proposition is not without risks.