Word: knaveproof
Part of speech: Adjective
Syllables: kna
ve
proof
Definition: For an idea or plan: infallible, or bulletproof.
Morphemes:
Affix: knave
Language: en
PoS: Noun
Meaning: A tricky, deceitful fellow; a dishonest person.
Affix: -proof
Language: en
PoS: Suffix
Meaning: Used to form adjectives denoting an impervious or impenetrable quality.