The antonyms *loosen* and *relax* have distinct nuances. *Loosen* refers to making something less tight or firm, while *relax* refers to becoming less tense or stressed. Use these words to describe physical objects, people and animals, and leisure activities.

그는 뷔페에서 너무 많이 먹은 후 벨트를 *느슨하게* 해야 했습니다.

彼はビュッフェで食べ過ぎた後、ベルトを*緩め*なければなりませんでした。

He had to *loosen* his belt after eating too much at the buffet.

직장에서 긴 하루를 보낸 후, 그녀는 따뜻한 목욕을 하면서 *휴식*을 좋아합니다.

仕事で長い一日を過ごした後、彼女は温かいお風呂に入って*リラックス*するのが好きです。

After a long day at work, she likes to *relax* by taking a warm bath.