Standard Lemma guide

infantile

adj · 5 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • /ˈɪnfəntaɪl/
  • Southern-England: Recorded audio is listed in the source snapshot.
  • CMU ARPABET: IH1 N F AH0 N T IH0 L Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

adj

Meaning 1

Pertaining to infants.

Definition source: English Wiktionary via Wiktextract

Examples

  • infantile paralysis

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

adj

Meaning 2

Childish; immature.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: juvenile, puerile, babish, babyish, bairnish, childish, dootsie, hissy, lactifluous, infantile, infantine, immature, kiddish, milky

Antonyms: none provided

3

adjective

Meaning 3

of or relating to infants or infancy

Definition source: Princeton WordNet 3.0

Examples

  • infantile paralysis

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

adjective satellite

Meaning 4

indicating a lack of maturity

Definition source: Princeton WordNet 3.0

Examples

  • childish tantrums
  • infantile behavior

Meaning relationships

Synonyms: childish

Antonyms: none provided

5

adjective satellite

Meaning 5

being or befitting or characteristic of an infant

Definition source: Princeton WordNet 3.0

Examples

  • infantile games

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

Mid-15th century, "pertaining to infants," from Latin infantilis (“pertaining to an infant”), equivalent to infant + -ile, from īnfāns. Sense of "infant-like" is from 1772.

Across languages

Translations

40 source translations are retained for this English entry.

  • Bulgarian: детски (detski) — pertaining to infants
  • Catalan: infantil — pertaining to infants
  • French: infantile — pertaining to infants
  • German: infantil — pertaining to infants
  • German: kindisch — pertaining to infants
  • German: albern — pertaining to infants
  • Hebrew: ילדותי (yalduti) — pertaining to infants
  • Italian: infantile — pertaining to infants
  • Manx: lhiannooagh — pertaining to infants
  • Manx: oikanagh — pertaining to infants
  • Polish: dziecięcy — pertaining to infants
  • Spanish: infantil — pertaining to infants
  • Spanish: pueril — pertaining to infants
  • Swedish: infantil — pertaining to infants
  • Turkish: çocuksal — pertaining to infants
  • Bulgarian: детински (detinski) — childish; immature
  • Bulgarian: инфантилен (infantilen) — childish; immature
  • Catalan: infantil — childish; immature
  • Czech: infantilní — childish; immature
  • Czech: dětinský — childish; immature
  • Dutch: infantiel — childish; immature
  • Dutch: kinderlijk — childish; immature
  • Dutch: kinderachtig — childish; immature
  • French: infantile — childish; immature
  • Hebrew: ילדותי (yalduti) — childish; immature
  • Hebrew: אינפנטילי (infantili) — childish; immature
  • Hungarian: infantilis — childish; immature
  • Italian: infantile — childish; immature
  • Italian: puerile — childish; immature
  • Polish: infantylny — childish; immature
  • Polish: dziecinny — childish; immature
  • Slovak: infantilný — childish; immature
  • Slovak: detinský — childish; immature
  • Spanish: infantil — childish; immature
  • Spanish: pueril — childish; immature
  • Spanish: aniñado — childish; immature
  • Swedish: infantil — childish; immature
  • Turkish: çocukça — childish; immature
  • Turkish: çocuksu — childish; immature
  • Ukrainian: інфанти́льний (infantýlʹnyj) — childish; immature