unsolid

comparative more unsolid · superlative most unsolid

1. Not solid.

   And equally unsolid is the argument that from a principle of gradation in races would reduce a principle of progress in races.

   1921, Theodore Graebner, Evolution

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   By this idea of solidity is the extension of body distinguished from the extension of space:--the extension of body being nothing but the cohesion or continuity of solid, separable, movable parts; and the extension of space, the continuity of unsolid, inseparable, and immovable parts.

   1690, John Locke, An Essay Concerning Humane Understanding, Volume I.