Standard Lemma guide

infantilize

verb · 2 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.

  • General-American: /ɪnˈfæn.tɪ.laɪz/
  • Southern-England: Recorded audio is listed in the source snapshot.

1

verb

Meaning 1

To reduce (an adult) to the state or status of an infant.

Definition source: English Wiktionary via Wiktextract

Usage: transitive

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

verb

Meaning 2

To treat (an adult) like a child.

Definition source: English Wiktionary via Wiktextract

Usage: transitive

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

Etymology tree English infantile Proto-Indo-European *-id- Proto-Indo-European *-yéti Proto-Indo-European *-idyéti Proto-Hellenic *-íďďō Ancient Greek -ῐ́ζω (-ĭ́zō)bor. Late Latin -izōder. Middle French -iserbor. Middle English -isen English -ize English infantilize From infantile + -ize (“make into”).

Across languages

Translations

20 source translations are retained for this English entry.

  • Catalan: infantilitzar — to reduce to the state of an infant
  • Dutch: infantiliseren — to reduce to the state of an infant
  • Finnish: infantilisoida — to reduce to the state of an infant
  • French: infantiliser — to reduce to the state of an infant
  • German: infantilisieren — to reduce to the state of an infant
  • Italian: infantilizzare — to reduce to the state of an infant
  • Portuguese: infantilizar — to reduce to the state of an infant
  • Spanish: infantilizar — to reduce to the state of an infant
  • Catalan: infantilitzar — to treat like a child
  • Dutch: infantiliseren — to treat like a child
  • Esperanto: infanigi — to treat like a child
  • Finnish: kohdella kuin lasta — to treat like a child
  • French: infantiliser — to treat like a child
  • German: infantilisieren — to treat like a child
  • Italian: infantilizzare — to treat like a child
  • Polish: infantylizować — to treat like a child
  • Polish: zinfantylizować — to treat like a child
  • Portuguese: infantilizar — to treat like a child
  • Spanish: infantilizar — to treat like a child
  • Swedish: förbarnsliga — to treat like a child