Infant and Oldster

Opposite meaning words

Infant noun - A recently born person.

Usage example: infants should be kept warm at all times

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Oldster is an antonym for infant.

Oldster noun - A person of advanced years.

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Infant is an antonym for oldster.

Cite this Source

Oldster and Infant. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/infant/oldster

Infant & Oldster. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/infant/oldster>.

Oldster or Infant. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/infant/oldster.

Google Ngram Viewer shows how "infant" and "oldster" have occurred on timeline