丁寧
1
polite;courteous;civil
2
careful;close;thorough;conscientious
漢字を書くときは点やはらいに気をつけて、なるべく早くていねいに書きましょう。
When drawing kanji be careful of dots and sweeps, write as carefully and quickly as possible.
Other forms
叮嚀 【ていねい】 (rarely used kanji form)