adj, slang ·Uncommon ·College level

Definitions

Verb

1. 1
   proof against human misuse or error wordnet

Adjective

1. 1
   foolproof; impossible to get wrong colloquial

Synonyms

All synonyms

foolproofgoof proofgoof-proof

Etymology

From goof + -proof.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.