noun, noun which may take the genitive case particle 'no'
know-it-all; someone who pretends to know
Colloquial term for a person who acts as if they know something when they actually don't, often used critically or humorously.
He's always a know-it-all, pretending to be knowledgeable when he actually knows nothing.
You can't rely on the opinions of a know-it-all.
Compound of 知ったかぶり (pretending to know) and 屋 (person with a certain trait).