口くちやかましい

i-adjective

nagging; critical; fault-finding

Describes a person who frequently complains, criticizes, or finds fault with others, often in an annoying way.

• 彼かれは口くちやかましい上じょう司しで、いつも細こまかいことを指し摘てきする。

  He is a nagging boss who always points out small things.

• 口くちやかましい姑しゅうとめに悩なやまされている。

  I'm troubled by my critical mother-in-law.

i-adjective

talkative; gossipy; chatty

Used for someone who talks a lot, often about others' affairs, sometimes with a negative connotation of being gossipy.

• 隣となりの奥おくさんは口くちやかましくて、近きん所じょの噂うわさ話ばなしばかりしている。

  The neighbor's wife is talkative and always gossiping about the neighborhood.