Insoluble

In`sol´u`ble

a.	1.
	1.	Not soluble; in capable or difficult of being dissolved, as by a liquid; as, chalk is insoluble in water.
	2.	Not to be solved or explained; insolvable; as, an insoluble doubt, question, or difficulty.
	3.	Strong.

Adj.	1.	insoluble - (of a substance) not easily dissolved Antonyms: soluble - (of a substance) capable of being dissolved in some solvent (usually water)
	2.	insoluble - admitting of no solution or explanation; "an insoluble doubt" Antonyms: soluble - susceptible of solution or of being solved or explained; "the puzzle is soluble"
	3.	insoluble - without hope of solution; "an insoluble problem"