adj mental; intellectual.
2. ingenious ·adj witty; shrewd; adroit; keen; sagacious; as, an ingenious reply.
3. ingenious ·adj possessed of genius, or the faculty of invention; skillful or promp to invent; having an aptitude to contrive, or to form new combinations; as, an ingenious author, mechanic.
4. ingenious ·adj proseeding from, pertaining to, or characterized by, genius or ingenuity; of curious design, structure, or mechanism; as, an ingenious model, or machine; an ingenious scheme, contrivance, ·etc.