infancy

noun

in·​fan·​cy ˈin-fən(t)-sē How to pronounce infancy (audio)
plural infancies
Synonyms of infancynext
1
: early childhood
2
: a beginning or early period of existence
3
: the legal status of an infant

Examples of infancy in a Sentence

She was often sick during her infancy. a skill developed in infancy She has been a member of the church since its infancy.
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.
This style of high-tech trailers is still in its infancy and will continue to evolve with new designs and amenities, but there's at least one or two features that are all but obligatory for the category. New Atlas, 13 Mar. 2026 During the chaos that represents the infancy of planetary systems, such impacts are common. Robert Lea, Space.com, 12 Mar. 2026 Doctors didn’t expect Mia to reach her first birthday because of pyruvate dehydrogenase complex deficiency (PDCD), a rare, genetic disorder often fatal during infancy. Edgar Thompson, The Orlando Sentinel, 9 Mar. 2026 Based on the true legend of the founder of the devotional sect known as the Shakers, the film traces the life of Lee, who after losing four children in infancy, became celibate and created a religious movement based in music and dayslong dance rituals. Saman Shafiq, USA Today, 9 Mar. 2026 See All Example Sentences for infancy

Word History

First Known Use

14th century, in the meaning defined at sense 1

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

Browse Nearby Words

Cite this Entry

“Infancy.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/infancy. Accessed 17 Mar. 2026.

Kids Definition

infancy

noun
in·​fan·​cy ˈin-fən-sē How to pronounce infancy (audio)
plural infancies
1
: early childhood
2
: a beginning or early period of existence

Medical Definition

infancy

noun
in·​fan·​cy ˈin-fən-sē How to pronounce infancy (audio)
plural infancies
1
: early childhood
2
: the legal status of an infant

Legal Definition

infancy

noun
in·​fan·​cy ˈin-fən-sē How to pronounce infancy (audio)
plural infancies
1
: the legal status of an infant : minority
2
: the affirmative defense of lacking legal capacity (as to make a contract or commit a crime) because of being too young and especially because one's age is below an age set by statute

More from Merriam-Webster on infancy

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