underweight

U1N1D2E1R1W4E1I1G2H4T1

adjective

Of an inappropriately or unusually low weight.

“He's thirty pounds underweight.”

Opposite
Less commonScrabble 19

Meanings

adjectiveunderweight (comparative more underweight, superlative most underweight)

comparative more underweight · superlative most underweight

  1. Of an inappropriately or unusually low weight.

    He's thirty pounds underweight.

    2 more examples

    He's so underweight he's had to buy smaller clothes.

    The market trader was fined for selling underweight bags of fruit.

  2. Not too heavy for an intended purpose.

    The suitcase is just slightly underweight; I'll let it on the plane.

  3. businessBeing less invested in a particular area than market wisdom suggests.

    The fund is underweight in mining.

    1 more example

    2011, Murdoch, S. Foreigners back for Aussie stocks, The Australian "It's a long-run trend of foreign investors -- typically being underweight the banking sector in Australia," Mr Baker said.

noununderweight (countable and uncountable, plural underweights)

plural underweights

  1. uncountableThe state or quality of being underweight.
    1 more example

    1996, United States Institute of Medicine Committee on Scientific Evaluation of WIC Nutrition Risk Criteria, WIC Nutrition Risk Criteria: A Scientific Assessment, National Academies Press, →ISBN, page 110, Underweight reflects the body’s thinness, but the term does not necessarily imply the nature and causes of underweight.

  2. countableAn underweight person.
  3. countablebusinessAn underweight investment.

    Consider a conventional long-only portfolio with underweights on holdings the investment manager does not like and overweights on holdings the manager does like.

    2011, Peter L. Bernstein, Capital Ideas Evolving, page 230
    1 more example

    Further, structured managers usually attempt to hit their lower targets by relying on a relatively large number of small active deviations (i.e., overweights and underweights).

    2004, Bob Litterman, Modern Investment Management: An Equilibrium Approach, page 198
verbunderweight (third-person singular simple present underweights, present participle underweighting, simple past and past participle underweighted)

present singular third person underweights · participle present underweighting · participle past underweighted · past underweighted

  1. transitiveTo underestimate the weight of.
  2. transitiveTo give insufficient weight to (a consideration); to underestimate the importance of.
  3. transitivebusinessTo invest in less than conventional wisdom would dictate.

    Although the portfolio overweights the German market, it underweights German marks.

    2009, Philip Lawton, Todd Jankowski, Investment Performance Measurement, page 419

Synonyms & antonyms

antonym(s) of “of low weight”

Opposite

antonym(s) of “state or quality”

Opposite

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

  1. Proto-Indo-European*h₁én
  2. Proto-Indo-European*h₁entér
  3. Proto-Indo-European*h₂én
  4. Proto-Indo-European*dʰeh₁-?
  5. Proto-Indo-European*(H)n̥dʰí
  6. Proto-Indo-European*(H)n̥dʰér
  7. Proto-Germanic*under
  8. Proto-West Germanic*undar
  9. Old Englishunder-
  10. Middle Englishunder-
  11. Englishunder-
  12. Englishweight
  13. Englishunderweight

From under- + weight.

Full word history & related roots →

Translations

Finnish alipainoinen, alipaino
  • alipainoinenof an inappropriately or unusually low weight
  • alipainothe state of being underweight
French maigre
  • maigreof an inappropriately or unusually low weight
German Untergewicht
  • Untergewichtthe state of being underweight
Greek λιποβαρής
  • λιποβαρής (lipovarís)of an inappropriately or unusually low weight
Polish mający niedowagę, niedoważony
  • mający niedowagęof an inappropriately or unusually low weight
  • niedoważonyof an inappropriately or unusually low weight
  • niedowagathe state of being underweight
Russian недове́шенный, недове́шенная
  • недове́шенный (nedovéšennyj)of an inappropriately or unusually low weight
  • недове́шенная (nedovéšennaja)of an inappropriately or unusually low weight
  • недове́шенные (nedovéšennyje)of an inappropriately or unusually low weight
  • недове́с (nedovés)the state of being underweight
  • недовесок (nedovesok)the state of being underweight
Spanish con infrapeso, bajo de pesantez
  • con infrapesoof an inappropriately or unusually low weight
  • bajo de pesantezof an inappropriately or unusually low weight
  • con insuficiente pesadezof an inappropriately or unusually low weight
  • con demasiada poca pesadumbreof an inappropriately or unusually low weight
  • faltarle pesaduraof an inappropriately or unusually low weight
  • tener excesivamente poco pesorof an inappropriately or unusually low weight
  • tener pesantez demasiadamente bajaof an inappropriately or unusually low weight
  • tener demasiado poca pesaduraof an inappropriately or unusually low weight
  • infrapesothe state of being underweight
  • insuficiente pesantezthe state of being underweight
  • pesadura excesivamente bajathe state of being underweight
  • demasiado poco pesorthe state of being underweight
Cite this entry
APA

underweight. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/underweight

MLA

“underweight.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/underweight. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “underweight,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/underweight.

Source: underweight on Wiktionary, CC BY-SA 4.0.