Far-out and Hair-raising

Far-out adjective - Different from the ordinary in a way that causes curiosity or suspicion.

Hair-raising and far-out are semantically related. In some cases you can use "Hair-raising" instead an adjective phrase "Far-out".

Hair-raising adjective - Causing fear.

Far-out and hair-raising are semantically related. Sometimes you can use "Far-out" instead an adjective phrase "Hair-raising".