What does "mutism" mean?

A psychological disorder in which the sufferer cannot speak in certain situations.

What is a synonym for "mutism"?

Common synonyms include: aphasia, dumbness, dysphasia, lockjaw, muteness, nonresponse.

/ˈmjuːtɪzəm/ noun

noun ·Rare ·Advanced level

Noun

1
A psychological disorder in which the sufferer cannot speak in certain situations. countable, uncountable
2
the condition of being unable or unwilling to speak wordnet

From French mutisme, from Latin mutus (“mute”), equivalent to mute + -ism.