Insoluble

1.

(unable to be dissolved, unable to be solved, impossible to dissolve, impossible to explain, inexplicable) ដែលមិនរលាយ, ដែលមិនអាចដោះស្រាយបាន

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.

1.

Strong