1

underweight

noun un·der·weight \ ˌən-dər-ˈwāt \
Updated on: 10 Dec 2017

Definition of underweight

: weight below normal, average, or requisite weight

Recent Examples of underweight from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'underweight.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of underweight

1596


2

underweight

adjective

Definition of underweight

: weighing less than the normal or requisite amount

Examples of underweight in a Sentence

  1. the long illness left him frail and underweight

Recent Examples of underweight from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'underweight.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of underweight

1675


UNDERWEIGHT Defined for English Language Learners

underweight

adjective

Definition of underweight for English Language Learners

  • : weighing less than the normal or expected amount : too light


UNDERWEIGHT Defined for Kids

underweight

adjective un·der·weight \ ˌən-dər-ˈwāt \

Definition of underweight for Students

: weighing less than what is normal, average, or necessary

Medical Dictionary

underweight

adjective un·der·weight \ -ˈwāt \

medical Definition of underweight

: weighing less than the normal amount for one's age, height, and build
  • underweight children
  • underweight adults typically have a body mass index of less than 18.5


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