Doing something slowly or sluggishly; dragging one’s feet (colloquial, mimetic).
ちんたら歩いてないで、早く来て！
Don't dawdle; come quickly!
彼はいつも仕事をちんたらやるから困る。
He always does his work sluggishly, which is frustrating.
会議でちんたらしていると、機会を逃すよ。
If you dilly-dally in the meeting you'll miss the opportunity.
Used as a noun or with する to mean taking one’s time, being slow or idle; to take a long time.
休みの日は家でちんたらするのが好きだ。
I like to take it easy at home on my days off.
彼はまたちんたらして遅刻した。
He dawdled again and was late.