Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • adj. Weighing less than is normal, healthy, or required.
  • n. Insufficiency of weight.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Of an inappropriately or unusually low weight.
  • adj. Not too heavy for an intended purpose.
  • adj. Being less invested in a particular area than market wisdom suggests.
  • n. The state or quality of being underweight.
  • v. To underestimate the weight of.
  • v. To give insufficient weight to (a consideration); to underestimate the importance of.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adj. being very thin

Etymologies

under- +‎ weight. (Wiktionary)

Examples

  • Regular readers of this blog will have noted previous entries on the “paradoxical” reverse epidemiology of obesity and cardiovascular mortality, where risk is apparently higher in underweight compared to normal weight, overweight or even mildly obese individuals (for e.g. of previous blog entries on this click here, here or here).

    Dr. Sharma’s Obesity Notes » Blog Archive » Obesity Paradox also Holds in Denmark

  • Even more interestingly, it shows that being underweight is as much a danger to health as obesity, and that a few extra pounds in otherwise healthy adults seems to increase longevity.

    eat. live. enjoy.

  • Although not approved by the FDA for this purpose, cyproheptadine has been used to stimulate appetite in underweight patients.

    Uz General Advice

  • So says J.P. Morgan Chase, which has downgraded the company to "underweight" -- meaning, in its parlance, "sell."

    Foreign, Energy Bets Start to Haunt Janus

  • After a follow-up of 10.4 years, compared with normal weight individuals (BMI 18. 5-24.9) all-cause mortality was higher in underweight (BMI

    Dr. Sharma’s Obesity Notes » Blog Archive » Obesity Paradox also Holds in Denmark

  • And so what we find is that the insurance companies may give us enough time to get someone up five pounds, but they still may be 30 pounds underweight, which is still life-threateningly dangerous.

    'Unrealistic Weights'

  • The fund has a so-called underweight position in Spanish bonds, he said.

    BusinessWeek.com -- Top News

  • "Each cow that the veterinarians identified as underweight was shot and killed with a rifle," the judge said.

    NEWS.com.au | Top Stories

  • Legal & General said its $500-billion fund is "neutral" on Italian bonds and holds fewer Spanish securities in its portfolio than recommended by benchmarks used to measure the fund's performance, a so-called underweight position.

    BusinessWeek.com -- Top News

  • Some babies born to immigrant parents are incorrectly classified as underweight - which could lead to unnecessary tests - when they're actually within the normal range for their ethnic groups, Canadian doctors warn.

    CBC | Top Stories News

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