いい線せん

expression, noun

on the right track; on the right lines

Used to say that someone's idea, guess, or approach is roughly correct or heading in the right direction. Often appears in the patterns いい線(を)いく or いい線(を)いってる.

See also: いい線いってる

• 彼かれの考かんがえはいい線せんいってると思おもう。

  I think his idea is on the right track.

• その答こたえ、いい線せんいってるけど、もう少すこし詳くわしく説せつ明めいして。

  That answer is on the right lines, but explain it in a bit more detail.