Keep mum and Open up

Keep mum

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Keep mum verb – Refuse to talk or stop talking; fall silent.
Open up is an antonym for keep mum.
Antonyms for Keep mum

Open up

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Open up verb – Talk freely and without inhibition.
Keep mum is an antonym for open up.
Antonyms for Open up
Similar words of keep mum
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Similar words of open up
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Open up and Keep mum. (2016). Retrieved 2021, January 28, from
Keep mum & Open up. N.p., 2016. Web. 28 Jan. 2021. <>.
Open up or Keep mum. 2016. Accessed January 28, 2021.

Antonyms for open up
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