This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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n. The condition of being unable or unwilling to speak as a result of a physical or psychological disorder.

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

n. The condition, state, or habit of being mute, or without speech.

n. The state of being mute or dumb; silence.

n. Same as mutage.

n. the condition of being unable or unwilling to speak

"The catatonic syndrome of negativistic stupor, characterized by mutism, negativism, stupor, and catalepsy, is also extremely responsive to ECT."

condition    status   

mutation    selective mutism    mutant    mute   

deaf-mutism    deaf-muteness   

agnosia    neurogenesis    astrocytoma    deef    dysphonia    apraxia    pre-print    lable    ataxia    homebuilt