At a slow, unhurried pace; leisurely, without haste.
会議ではゆっくり話してください。
Please speak slowly during the meeting.
景色を見ながらゆっくり歩いた。
I walked slowly while looking at the scenery.
朝ごはんはゆっくり食べる時間があるといい。
It's nice to have time to eat breakfast slowly.
With time to spare; easily or sufficiently (doing something with enough time or capacity).
この仕事ならゆっくり終わらせられるよ。
I can finish this work easily/in good time.
出発はゆっくりで大丈夫だ。電車はまだ来ない。
We can leave slowly/no rush — the train hasn't arrived yet.
Comfortably; well (e.g., sleep comfortably or rest well).
疲れたから今日はゆっくり寝るつもりだ。
I'm tired, so I plan to sleep well/for a long time today.
温泉でゆっくりくつろいだ。
I relaxed comfortably at the hot spring.