weighing less than is usual, required, or proper.
deficiency in weight below a standard or requirement.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use underweight in a sentence
Like many rescues, he’s still a little wiry and underweight at 50 pounds.For some dogs (and humans), the pandemic adoption rush was mostly a waiting game | Hau Chu | June 25, 2021 | Washington Post
Frequent donors were underweight and showed low levels of antibodies.The U.S. Is Closing a Loophole That Lured Mexicans Over the Border to Donate Blood Plasma for Cash | by Dara Lind, ProPublica, and Stefanie Dodt, ARD German TV | June 24, 2021 | ProPublica
Undernutrition leaves children stunted, or short for their age, and wasted, underweight for their height.Food that boosts gut microbes could be a new way to help malnourished kids | Jeanne Erdmann | June 7, 2021 | Science News
They’re also long small-cap for 2021 and underweight staples, real estate and communications services.From Bitcoin to Asian tech stocks, these are the biggest winners and losers of the 2020 global markets | Bernhard Warner | January 1, 2021 | Fortune
Which is why the bank has an “underweight” rating on the stock, with a price target of—yes you are reading this right—$90.JP Morgan warns investors that Tesla stock is ‘dramatically’ overvalued in new report | Lee Clifford | December 11, 2020 | Fortune
In Israel, however, a new law took effect January 1st that banned the use of underweight models.How Skinny Is Too Skinny? Israel Bans ‘Underweight’ Models | Carrie Arnold | January 8, 2015 | THE DAILY BEAST
Women are frequently reminded, too, that Barbie would be dangerously underweight if she were a real human.
You'd think so, but there's not much evidence that exercise affects BMI enough to take you from "overweight" to "underweight".
Never mind the fact that he was 45 pounds underweight when he auditioned to play the beefy lead.Spartacus Hero Liam McIntyre’s Unlikely Rise into the Role | Adam Auriemma | January 27, 2012 | THE DAILY BEAST
Healthier rather than over or underweight 12:18 Comment From Liz Thanks, that's really interesting!Newsweek Live Chat: What the Internet Can Teach Us About Sex | The Daily Beast | April 25, 2011 | THE DAILY BEAST
Amid the temptations of home food, Jack had remained persistently underweight.Health Through Will Power | James J. Walsh
They are the people who are overweight and the people who are underweight.Psychotherapy | James J. Walsh
Some of you are underweight, because you are not properly regulated so far as your meals and living is concerned.The Art of Stage Dancing | Ned Wayburn
Sometimes pupils who are underweight when they first come here begin to lose weight, and they get worried about it.The Art of Stage Dancing | Ned Wayburn
Many are undersized, underweight, rickety and diseased in body and generally of a slovenly, unmanly appearance.A Plea for the Criminal | James Leslie Allan Kayll
British Dictionary definitions for underweight
weighing less than is average, expected, or healthy
having a lower proportion of one's investments in a particular sector of the market than the size of that sector relative to the total market would suggest
(of a fund etc) disproportionately invested in this way: pension funds have become underweight of equities
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012