no solution

• unsolvableImpossible to resolve
• deadlockMutual blocking, no progress
• impasseSituation without resolution
• stalemateMutual obstruction preventing progress
• hopelessBeyond possibility of success

stuck · impossible · futile · gridlock · dead end · paradox · contradiction · insoluble · brick wall · standstill · quandary · void · empty set · undefined · irreversible · intractable · unresolvable · checkmate

• linear algebramatrix, linear equation, vectors, linear function, matrices