In`com*press"i*ble (?), a. [Pref. in- not + compressible: cf. F. incompressible.]
Not compressible; incapable of being reduced by force or pressure into a smaller compass or volume; resisting compression; as, many liquids and solids appear to be almost incompressible.
--
In`com*press"i*ble*ness, n.
© Webster 1913.