Off-the-wall and Rad

Off-the-wall adjective - Different from the ordinary in a way that causes curiosity or suspicion.

Rad and off-the-wall are semantically related. In some cases you can use "Rad" instead an adjective phrase "Off-the-wall".

Rad noun - A unit of absorbed ionizing radiation equal to 100 ergs per gram of irradiated material.

Off-the-wall and rad are semantically related. Sometimes you can use "Off-the-wall" instead an adjective "Rad".