n. A psychological disorder in which the sufferer cannot speak in certain situations.
The Collaborative International Dictionary
Mutism \Mut"ism\, n.
The condition, state, or habit of being mute, or without
Douglas Harper's Etymology Dictionary
"state of being mute," 1824, from French mutisme (1741), from Latin mutus (see mute (adj.)).
n. the condition of being unable or unwilling to speak
Usage examples of "mutism".
Predictors, akinetic mutism was very rare, a result of damage to the anterior cin-gulate region of the brain.
The fact that some individuals descend into akinetic mutism whereas others do not just highlights the importance of making a choice.