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infant

1 of 2

noun

in·​fant ˈin-fənt How to pronounce infant (audio)
1
: a child in the first period of life
2
: a person who is not of full age : minor

infant

2 of 2

adjective

1
: intended for young children
infant clothes
2
: being in an early stage of development
an infant industry
3
: of, relating to, or being in infancy

Examples of infant in a Sentence

Noun a study of health problems that can affect young infants He showed us a picture of his infant daughter. Adjective She is an infant teacher.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Noun
The company added that botulism is rare but serious, and shared symptoms to look for in infants, such as constipation, poor feeding, ptosis (drooping eyelid) and sluggish pupils. Angel Saunders, PEOPLE, 27 Nov. 2025 On the Patrick LabyorSheaux, the Little House costars recalled how Landon had secretly swapped the real infant playing Grace Ingalls — which was Wendi Turnbaugh at the time — with a baby doll. Daysia Tolentino, Entertainment Weekly, 27 Nov. 2025
Adjective
Health experts warn the number of illnesses in this outbreak could rise as officials reopen investigations into cases of infant botulism from earlier in the year. Alexandra Banner, CNN Money, 26 Nov. 2025 During the formative phase of the infant American republic, when its survival was still problematic, iconic founders performed a valuable function as reliable sources of unquestioned wisdom, a veritable gallery of Delphic oracles available on demand. Literary Hub, 28 Oct. 2025 See All Example Sentences for infant

Word History

Etymology

Noun

Middle English enfaunt, from Anglo-French enfant, from Latin infant-, infans, from infant-, infans, adjective, incapable of speech, young, from in- + fant-, fans, present participle of fari to speak — more at ban entry 1

First Known Use

Noun

14th century, in the meaning defined at sense 1

Adjective

1581, in the meaning defined at sense 1

Time Traveler
The first known use of infant was in the 14th century

Browse Nearby Words

Cite this Entry

“Infant.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/infant. Accessed 29 Nov. 2025.

Kids Definition

infant

noun
in·​fant
ˈin-fənt
: a child in the first period of life
infant adjective

Medical Definition

infant

noun
in·​fant ˈin-fənt How to pronounce infant (audio)
1
a
: a child in the first year of life : baby
b
: a child several years of age
2
: a person who is not of full age : minor
infant adjective

Legal Definition

infant

noun
in·​fant ˈin-fənt How to pronounce infant (audio)
: a person who is not of the age of majority : minor compare adult

More from Merriam-Webster on infant

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