Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • adjective So easy to use or make that there is very little chance of failure.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • adjective Incapable of being misused even by the most stupid or careless of users.

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

idiot +‎ -proof

Examples

Comments

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