Definition of impervious. 1  1a : not allowing entrance or passage : impenetrable a coat impervious to rainb : not capable of being damaged or harmed a carpet impervious to rough treatment. 2  2 : not capable of being affected or disturbed impervious to criticism.
Ideally, all should aim to keep their waist measurement less than half that of their height, found the scientists. That means a 6ft (72 inch) tall man should aim to keep his waist less than 36 inches, while a 5ft 4in (64 inch) woman should keep hers under 32 inches.They have found that the easy-to-calculate ratio between the two is a better predictor of risk than the most widely measure of obesity, called body mass index (BMI).hat means a 6ft (72 inch) tall man should aim to keep his waist less than 36 inches, while a 5ft 4in (64 inch) woman should keep hers under 32 inches. They have found that the easy-to-calculate ratio between the two is a better predictor of risk than the most widely measure of obesity, called body mass index (BMI).
Waist: Measured horizontally from edge to edge at a specific distance below HPS, which will vary depending on sample size and company standards. Example: For a Junior size 9 waist spec is taken from 15 Â½â below HPS. Image from our How to Spec a Garment eBook.