Daft and Off-the-wall

Daft adjective - Having or showing a very abnormal or sick state of mind.

Off-the-wall and daft are semantically related. In some cases you can use "Off-the-wall" instead an adjective "Daft".

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

Daft and off-the-wall are semantically related. Sometimes you can use "Daft" instead an adjective phrase "Off-the-wall".