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infant

American  
[in-fuhnt] / ˈɪn fənt /

noun

infants plural
  1. a child during the earliest period of their life, especially before they can walk; baby.

  2. Law. a person who is not of full age, especially one who has not reached the age of 18 years; a minor.

  3. a beginner, as in experience or learning; novice.

    The new candidate is a political infant.

  4. anything in the first stage of existence or progress.


adjective

  1. of or relating to infants or infancy.

    infant years.

  2. being in infancy.

    an infant king.

  3. being in the earliest stage.

    an infant industry.

  4. of or relating to the legal state of infancy; minor.

infant British  
/ ˈɪnfənt /

noun

  1. a child at the earliest stage of its life; baby

  2. law another word for minor

  3. a young schoolchild, usually under the age of seven

  4. a person who is beginning or inexperienced in an activity

  5. (modifier)

    1. of or relating to young children or infancy

    2. designed or intended for young children

"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

adjective

  1. in an early stage of development; nascent

    an infant science or industry

  2. law of or relating to the legal status of infancy

"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

Other Word Forms

Derived Forms

Inflected Forms

Nouns

Etymology

Origin of infant

First recorded in 1350–1400; from Latin infant- (stem of infāns ) “small child,” literally, “one unable to speak,” equivalent to in- in- 3 + -fāns, present participle of fārī “to speak”; replacing Middle English enfaunt, from Anglo-French, from Latin, as above

Explanation

An infant is a baby. When you were an infant, you weren't able to walk, talk, or feed yourself (but you had a pretty mean burp). Infant is most often used for a very young human, but you can also use it to talk about animal babies. People are considered infants from the moment of birth until approximately one year old, an age when many babies are starting to walk and talk. At this point, they're commonly called toddlers instead of infants. The Latin root is infantem, which as a noun means "babe in arms," and as an adjective "unable to speak."

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Vocabulary lists containing infant

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

I came to this country as an infant because my father served in the U.S.

From Salon Jul. 10, 2026

Weeks later, they were peering at a tiny infant held up to the camera, in a video call arranged by the agency.

From BBC Jul. 8, 2026

Nara and Lucky Blue Smith, 28, married in 2020 and share four children: eldest daughter Rumble Honey, son Slim Easy, Whimsy Lou and infant Fawnie Golden.

From Los Angeles Times Jul. 2, 2026

From all over the world, the diaspora has worked to send medicine, diapers and infant formula to Venezuela, while posting rescue pleas on social media.

From Barron's Jul. 2, 2026

He went over to infant Flossi, gathered her up, and when she clung to his belly, set off toward the males.

From "My Life with the Chimpanzees" by Jane Goodall

Like the spine, the human pelvis must balance two competing demands: efficient bipedal walking and birthing large-brained infants.

From Science Daily Jul. 11, 2026

Americans have largely heard about the famous French creche system of public daycares, but the French government also subsidizes the kind of one-on-one at-home care that many parents of infants prefer.

From Slate Jul. 6, 2026

All three infants, who ranged in age from two months to five months, were hospitalized and treated with a drug approved by the Food and Drug Administration to treat infant botulism, officials said.

From Los Angeles Times Jun. 14, 2026

Johnson’s son recently turned 6 months old and received an early dose of the MMR vaccine, which pediatricians recommend for infants in outbreak areas.

From The Wall Street Journal Jun. 13, 2026

Their women were clad in sealskins, some with infants at their breasts.

From "A Dance with Dragons" by George R. R. Martin

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