Words similar to foolproof

Example sentences for: foolproof

How can you use “foolproof” in a sentence? Here are some example sentences to help you improve your vocabulary:

He had little patience for people who want their flowers to be foolproof and in continuous bloom.
We collect and preserve mnemonics, however redundant, as insurance against embarrassing lapsus memoriae . They are not foolproof.
No single security measure is foolproof.
That big black steam guard looked so ostentatiously foolproof that I feared it would be clumsy, like a bicycle with training wheels.
If arbitrage were so simple and foolproof, why shouldn't we invest the whole trust fund in private stocks?