insalubrious

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

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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 !!