Motormouth and Mum

Opposite meaning words

Motormouth noun - A person who talks constantly.

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Mum is an antonym for motormouth in talkative topic.

Mum adjective - Deliberately refraining from speech.

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Motormouth is an antonym for mum.

Cite this Source

Mum and Motormouth. (2016). Retrieved 2026, July 28, from https://thesaurus.plus/related/motormouth/mum

Motormouth & Mum. N.p., 2016. Web. 28 Jul. 2026. <https://thesaurus.plus/related/motormouth/mum>.

Mum or Motormouth. 2016. Accessed July 28, 2026. https://thesaurus.plus/related/motormouth/mum.

Google Ngram Viewer shows how "motormouth" and "mum" have occurred on timeline