adj. 1. Having great inventive skill and imagination: an ingenious negotiator. 2. Marked by or exhibiting originality or inventiveness: an ingenious solution to the problem. 3. Obsolete Having genius; brilliant. [Middle English, from Old French ingenios, from Latin ingeniōsus, from ingenium, inborn talent; see genə- in the Appendix of Indo-European roots.] in·genious·ly adv. in·genious·ness n. |
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