Definition of "involuntariness" [in•vol•un•ta•ri•ness]
The state of being involuntary; unwillingness; automatism.(noun)
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Use "involuntariness" in a sentence
"The voluntary  implies a certain definite action, and so-called involuntariness also implies a certain definite action."
"Again she tried to hold him, although, with equal involuntariness, her attempt was made in mild terms of resentment."
"But in the latter case, when you are undergoing your own pain and suffering, there is an element of involuntariness, and because of the lack of control on your part, you feel weak and completely overwhelmed."