Methodical, precise, or meticulous — a person who is very orderly, punctual, and careful.
彼女は几帳面で、机の上はいつも整理されている。
She is very meticulous; her desk is always tidy.
几帳面な人は締め切りを守るのが得意だ。
Methodical people are good at meeting deadlines.
旅行の準備は几帳面にチェックリストを作った。
I made a careful checklist for the trip's preparations.
(Rare) In carpentry/architecture, a carved wooden post with rounded corners and grooves along the sides.
古い寺院の床柱には几帳面の加工が見られることがある。
You can sometimes see the kichōmen-style carving on floor pillars in old temples.