The opposite of voluntary would be involuntary (not by choice).
If it is by outside force or regulation, the opposite would be compulsory, forced, required, or obligatory.
The opposite of compulsory (compelled) would be voluntary or optional.
They had a voluntary exchange on the apartment.
The opposite of a captive audience is a voluntary or disengaged audience. This refers to individuals who are not compelled to pay attention or participate, often because they have the option to leave or ignore the presentation or message. Unlike a captive audience, which is held in place and focused, a disengaged audience may be distracted or uninterested, making it more challenging to capture their attention.
a voluntary provision is an act of giving freely without demanding for pay back, that is wholeheartedly.
Nonprofit organisation
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The opposite of compulsory (compelled) would be voluntary or optional.
The terms voluntary and automatic have opposite meanings. If a muscle is voluntary that means that it is under conscious control, rather than operating automatically.
Lateral Corticospinal Tract
The opposite of conscription is voluntary enlistment, where individuals choose to join the military or armed forces of their own accord rather than being compelled to do so by law. In a voluntary system, service members enlist based on personal motivation, such as a sense of duty, career opportunities, or patriotism. This approach contrasts with conscription, which mandates military service for eligible citizens.
Conscription is the opposite of voluntary. People are forced by law to serve in the armed forces. From Wikipedia: Conscription is the compulsory enrollment of people to some sort of public service, most often military service.)
It means that you have free will and are able to make a conscious decision to take a specific action. The opposite is involuntary, and that means you have no conscious control of the action. An example could be the act of digestion is involuntary and the act of taking a walk down the street is voluntary behavior.
Voluntary means you have voluntary control, while the involuntary you do not have voluntary control of them.
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