にわか仕じ込こみ

noun, noun which may take the genitive case particle 'no'

hastily prepared; crammed; makeshift; half-baked

Describes knowledge, skills, or preparations acquired hastily, often with a negative connotation of being superficial or unreliable. Can be used as a noun or adjectivally with の.

• 彼かれの知ち識しきはにわか仕じ込こみだから、深ふかく聞きかれるとすぐにボロが出でる。

  His knowledge is hastily crammed, so when questioned deeply, flaws quickly appear.

• にわか仕じ込こみの英えい語ごでプレゼンをするのは不ふ安あんだ。

  I'm uneasy about giving a presentation in my makeshift English.

noun

goods prepared in a hurry

Refers to items or products that were prepared hastily, often after they were already needed. Less common than the abstract sense.

• 注ちゅう文もんが殺さっ到とうして、にわか仕じ込こみの商しょう品ひんを出しゅっ荷かせざるを得えなかった。

  Orders flooded in, and we had no choice but to ship goods prepared in a hurry.