insoluble Meaning, Definition & Usage

  1. adjective (of a substance) incapable of being dissolved
    indissoluble.
  2. adjective admitting of no solution or explanation
    • an insoluble doubt
  3. adjective satellite without hope of solution
    • an insoluble problem

WordNet

In*sol"u*ble adjective
Etymology
L. insolubilis indissoluble, that can not be loosed: cf. F. insoluble. See In- not, and Soluble, and cf. Insolvable.
Definitions
  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. "An insoluble wall." Obs. Holland

Webster 1913