Incoercible
Incoercible , adjective
[Prefix in- not + coercible: compare French incoercible.]
1.
Not to be coerced; incapable of being compelled or forced.
2.
(Physics) Not capable of being reduced to the form of a liquid by pressure; -- said of any gas above its critical temperature.
3.
(Physics) That can note be confined in, or excluded from, vessels, like ordinary fluids, gases, etc.; -- said of the imponderable fluids, heat, light, electricity, etc.