Word: foolproof
Part of speech: Adjective
Syllables: fool
proof
Definition: Certain to succeed in all eventualities, or claimed to be so; infallible.
Morphemes:
Affix: fool
Language: en
PoS: Adjective
Meaning: Foolish.
Etymology Compounds: Affix: follis
Language: la
Decoded: follis
PoS: Noun
Meaning: purse, sack, money bag
Affix: -proof
Language: en
PoS: Suffix
Meaning: Used to form adjectives denoting an impervious or impenetrable quality.