Consisting of or containing or of the nature of crystals.

Roget 321: dense, solid; solidified etc. v.; caseous; pukka^†; coherent, cohesive etc. 46; compact, close, serried, thickset; substantial, massive, lumpish^†; impenetrable, impermeable, nonporous, imporous^†; incompressible; constipated; concrete etc. (hard) 323; knotted, knotty; gnarled; crystalline, crystallizable; thick, grumous^†, stuffy.    undissolved, unmelted^†, unliquefied^†, unthawed^†.    indivisible, indiscerptible^†, infrangible^†, indissolvable^†, indissoluble, insoluble, infusible.    ... show more

Distinctly or sharply outlined.

Transmitting light; able to be seen through with clarity:
— The cold crystalline water of melted snow.

synonyms: crystal clear, limpid, lucid, pellucid, transparent.

Roget 425: transparent, pellucid, lucid, diaphanous, translucent, tralucent^†, relucent^†; limpid, clear, serene, crystalline, clear as crystal, vitreous, transpicuous^†, glassy, hyaline; hyaloid [Med.], vitreform^†.    ... show more

Polish: kryształowy