Off the hook and Riskless

Off the hook adjective - Freed from danger or blame or obligation.

Riskless and off the hook are semantically related. In some cases you can use "Riskless" instead an adjective phrase "Off the hook".

Riskless adjective - Thought to be devoid of risk.

Off the hook and riskless are semantically related. Sometimes you can use "Off the hook" instead an adjective "Riskless".