ねちっこいpersistent, obstinate, stubborn, pigheaded

ねちっこい性格(せいかく)の上司(じょうし)は厄介(やっかい)です。

A boss with a stubborn personality is troublesome. {persistent, obstinate, stubborn, pigheaded}

先輩(せんぱい)がねちっこく説教(せっきょう)してきてウンザリした。

I got fed up with my senior persistently lecturing me. {persistent, obstinate, stubborn, pigheaded}

ねちっこい人(ひと)よりさっぱりとした人(ひと)の方(ほう)が好(す)きです。

I prefer someone straightforward rather than someone who is persistent or stubborn. {persistent, obstinate, stubborn, pigheaded}

人(にん)の失敗(しっぱい)をねちっこく責(せ)めるなんて…彼(かれ)は性格(せいかく)が悪(わる)いです。

Persistently blaming others for their mistakes... he has a bad character. {persistent, obstinate, stubborn, pigheaded}

相手(あいて)がねちっこく攻(せ)めてくるのでなかなか攻撃(こうげき)を出来(でき)ずにいます。

I'm having a hard time attacking because the opponent is persistently on the offensive. {persistent, obstinate, stubborn, pigheaded}