insoluble

Used with adjective complement

• seem: I know very well that this riddle seems insoluble.
• become: The hard coating which forms inside the rim is phosphate fertilizer which has become insoluble.
• remain: Top Approach 2: If the peptide remains Insoluble, look at Its amino acid composition prior to proceeding further.
• appear: Many questions of tactical and strategical character will appear insoluble if approached in a formalistic way.

Modifies a noun

• fiber: The skins of fruits are also rich in insoluble fiber.
• fiber: Bran, an insoluble fiber, reduces the absorption of calcium enough to cause urinary calcium to fall.
• carbonate: N.B. Do not breathe on the lead citrate at any stage as insoluble lead carbonate will form which produces dense spots over the sections.
• contradiction: To date no psychoanalytic society has managed to resolve that insoluble contradiction.
• salt: The insoluble salt is filtered off to separate it from the solution, washed with pure water to remove any residual salt solution.
• residue: This latter possibility is in fact very likely due to the quartz sediment derived from the limestone insoluble residue.

Modifying Another Word

• seemingly: Maybe you can solve a seemingly insoluble problem, or want to see how others have tackled the situation you now face.
• virtually: It was found to be virtually insoluble in water.
• apparently: But isn't the digital divide just a function of the apparently insoluble economic gap between the developed and developing world?
• almost: Problem #4 Unfortunately, the issue of resource usage is almost insoluble.
• relatively: Some materials, such as starch, are relatively insoluble and consequently have little effect on water potential.
• highly: Tangles consist of highly insoluble pairs of filaments which are wound round each other like a double-stranded rope.

Preposition: in

• water: Removal of agents insoluble in water may be facilitated by cleaning the contaminated area with cold soapy water.
• alcohol: They are mostly soluble in water and insoluble in alcohol.
• solvent: Sodium chloride is insoluble in organic solvents This is also typical of ionic solids.
• solution: Pectins are the most ' hydrophilic ' components of the cell wall and they are insoluble in alcoholic solutions.