infant

1 of 2

noun

in·​fant ˈin-fənt 

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

2

: being in an early stage of development

3

: of, relating to, or being in infancy

Synonyms

Noun

• babe
• baby
• bambino
• child
• neonate
• newborn

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

Noun

Common symptoms include: Fever Muscle aches Headache Stiff neck Confusion Loss of balance Convulsions Diarrhea Other gastrointestinal symptoms Miscarriage, stillbirth, premature delivery and/or life-threatening infection of newborn infants Death Contributing: Fernando Cervantes Jr. —Amaris Encinas, USA TODAY, 5 Nov. 2024

Singapore, Iceland, Norway and Japan have 1.5 to 1.9 infant deaths per 1,000 live births. —Edward Lotterman, Twin Cities, 3 Nov. 2024

Adjective

The devilish Goblin King gave protagonist Sarah (Jennifer Connelly) 13 hours to break free of his supernatural maze in order to save her infant half-brother, Toby. —Marc Bernardin, EW.com, 11 Mar. 2024

The high contribution from the donor stem cells the research achieved is what gave the infant cynomolgus monkey (Macaca fascicularis) a strange green tinge. —Meghan Bartels, Scientific American, 10 Nov. 2023

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

circa 1586, in the meaning defined at sense 1

Phrases Containing infant

• infant mortality
• infant school
• sudden infant death syndrome

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 

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 

: a person who is not of the age of majority : minor compare adult