Roget's Thesaurus of English Words and Phrases by Peter Mark Roget

impenetrability, impermeability; incompressibility; imporosity†; cohesion &c 46; constipation, consistence, spissitude†. specific gravity; hydrometer, areometer†. condensation; caseation†; solidation†, solidification; consolidation; concretion, coagulation; petrification &c (hardening) 323; crystallization, precipitation; deposit, precipitate; inspissation†; gelation, thickening &c v.. indivisibility, indiscerptibility†, insolubility, indissolvableness. solid body, mass, block, knot, lump; concretion, concrete, conglomerate; cake, clot, stone, curd, coagulum; bone, gristle, cartilage; casein, crassamentum†; legumin†. superdense matter, condensed states of matter; dwarf star, neutron star. V. be dense &c adj.; become solid, render solid &c adj.; solidify, solidate†; concrete, set, take a set, consolidate, congeal, coagulate; curd, curdle; lopper; fix, clot, cake, candy, precipitate, deposit, cohere, crystallize; petrify &c (harden) 323. condense, thicken, gel, inspissate†, incrassate†; compress, squeeze, ram down, constipate. Adj. dense, solid; solidified &c v.; caseous; pukka†; coherent, cohesive &c 46; compact, close, serried, thickset; substantial, massive, lumpish†; impenetrable, impermeable, nonporous, imporous†; incompressible; constipated; concrete &c (hard) 323; knotted, knotty; gnarled; crystalline, crystallizable; thick, grumous†, stuffy. undissolved, unmelted†, unliquefied†, unthawed†. indivisible, indiscerptible†, infrangible†, indissolvable†, indissoluble, insoluble, infusible.