Synonyms of the word

insoluble

• adj. That cannot be dissolved.
• adj. That cannot be solved; unsolvable; insolvable.
• adj. That cannot be explained; mysterious or inexplicable.
• adj. That cannot be broken down; dispersed.
• n. Any substance that cannot be dissolved.

hopeless

• adj. Without hope; despairing; not expecting anything positive.
• adj. Giving no ground of hope; promising nothing desirable; desperate.
• adj. Without talent, not skilled.

incomprehensible

• adj. Impossible or very difficult to understand.

indissoluble

• adj. Lasting; indestructible; not possible to dissolve, disintegrate or break-up.

inexplicable

• adj. Impossible to explain; not easily accounted for.

insolvable

• adj. Impossible to solve; insoluble.
• adj. Incapable of being paid or discharged.
• adj. Not capable of being loosed or disentangled; inextricable.

unresolvable

• adj. not able to be resolved.

unsolvable

• adj. Not solvable.
• adj. Provably not solvable.