We found one dictionary that defines the word fool proof:

General (1 matching dictionary)

1. fool-proof: Wordnik

Phrases: not fool proof, more... ▸ Words similar to fool proof ▸ Usage examples for fool proof ▸ Idioms related to fool proof ▸ Wikipedia articles (New!) ▸ Words that often appear near fool proof ▸ Rhymes of fool proof ▸ Invented words related to fool proof