insalubrious

salu = healthy (salu for salman khan is very healthy)... insalubrious = not friend of salu... not healthy

salu for salman khan is VERY HEALTHY... in(NOT)salubrious who doesn’t have health as that of SALMAN...IS NOT HEALTHY

compare it to 'Saloon' which is an unhealthy place.

insALUbrious - rememeber alu (potato).. eating aloo everyday is not good for health

using Saulab Sauchalya(public toilet) is not healthy.. hope u get it !!