adj strong.
2. insoluble ·adj not to be solved or explained; insolvable; as, an insoluble doubt, question, or difficulty.
3. insoluble ·adj not soluble; in capable or difficult of being dissolved, as by a liquid; as, chalk is insoluble in water.
adj strong.
2. insoluble ·adj not to be solved or explained; insolvable; as, an insoluble doubt, question, or difficulty.
3. insoluble ·adj not soluble; in capable or difficult of being dissolved, as by a liquid; as, chalk is insoluble in water.
Webster English vocab. Английский словарь Webster. 2012