Phrase guide

second childhood

noun · 3 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.

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Pronunciation

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1

noun

Meaning 1

The period or state of cognitive decline of an elderly person, characterized by childlike judgment and behavior.

Definition source: English Wiktionary via Wiktextract

Usage: idiomatic

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: dotage, senile dementia, senescence, senility

Antonyms: none provided

2

noun

Meaning 2

A childlike state in any adult, resulting from mental illness, trauma, or other conditions.

Definition source: English Wiktionary via Wiktextract

Usage: idiomatic

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: dementia

Antonyms: none provided

3

noun

Meaning 3

mental infirmity as a consequence of old age; sometimes shown by foolish infatuations

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: dotage, senility

Antonyms: none provided

Broader terms: old age, years, age, eld, geezerhood

History

Etymology

No etymology was provided for this word.