ichidan verb, intransitive verb
lose an argument; be talked down
Describes being out-argued or verbally overwhelmed by someone else, resulting in defeat in a dispute or debate.
彼は議論で言い負けてしまった。
He lost the argument.
あの人は口が上手いから、いつも言い負けてしまう。
That person is so eloquent that I always end up being talked down.