半はん可か通つう

noun, na-adjective

superficial knowledge; smattering

Refers to shallow, half-baked knowledge. Often used critically to describe someone who knows just enough to sound informed but lacks real depth.

• 彼かれの経けい済ざい学がくの知ち識しきは半はん可か通つうで、専せん門もん家かの前まえではすぐにボロが出でる。

  His knowledge of economics is superficial, and he quickly shows his ignorance in front of experts.

• 半はん可か通つうなアドバイスはかえって危き険けんだ。

  Half-baked advice can be more dangerous than none at all.

noun

person with superficial knowledge; dilettante; pretentious know-it-all

A person who has only a smattering of knowledge but acts as if they are an expert. Carries a negative, mocking tone.

• あの人ひとは半はん可か通つうだから、話はなし半はん分ぶんに聞きいたほうがいい。

  That person is a dilettante, so you'd better take what they say with a grain of salt.

• 半はん可か通つうほど始し末まつに負おえないものはない。

  There's nothing more troublesome than a person with superficial knowledge.