|1.||unable to be broken into or taken by force: an impregnable castle|
|2.||unable to be shaken or overcome: impregnable self-confidence|
|3.||incapable of being refuted: an impregnable argument|
|[C15 imprenable, from Old French, from |
|an extraordinary or unusual thing, person, or event; an exceptional example or instance.|
|a gadget; dingus; thingumbob.|
Dictionary.com presents 366 FAQs, incorporating some of the frequently asked questions from the past with newer queries.