FOOLPROOF

foolproof, unfailing

(adjective) not liable to failure; “a foolproof identification system”; “the unfailing sign of an amateur”; “an unfailing test”

goofproof, goof-proof, foolproof

(verb) proof against human misuse or error; “foolproof this appliance”

Source: WordNet® 3.1

Etymology

Adjective

foolproof (comparative more foolproof, superlative most foolproof)

For a device: protected, or designed to be proof against misuse or error.

For an idea or plan: infallible, or bulletproof.

Verb

foolproof (third-person singular simple present foolproofs, present participle foolproofing, simple past and past participle foolproofed)

(transitive) To make foolproof.

We foolproofed the operations.

Source: Wiktionary

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