いい線いってる

いいせんいってる

to be on the right track; to be doing well; to be looking good; to be coming along nicely

Also written いい線行ってる、良い線いってる、良い線行ってる

Meaning

expv1
to be on the right track; to be doing well; to be looking good; to be coming along nicely

Example sentences

彼の英語はいい線いってるよ。

His English is coming along pretty well.
いい線いってるよ。

I think you're on the right track.
その表現、いい線いってる！

The expression is right on track.