adj not to be coerced; incapable of being compelled or forced.
2. incoercible ·adj that can note be confined in, or excluded from, vessels, like ordinary fluids, gases, ·etc.;
said of the imponderable fluids, heat, light, electricity, ·etc.
3. incoercible ·adj not capable of being reduced to the form of a liquid by pressure;
said of any gas above its critical point;
also particularly of oxygen, hydrogen, nitrogen, and carbon monoxide, formerly regarded as incapable of liquefaction at any temperature or pressure.