Physical looseness or slack in a rope, cable, skin, or other material. Often used for sagging skin or a slack line.
Please take up the slack in the rope.
年を取ると肌にたるみが出る。
As you age, your skin develops sagginess.
A feeling of mental slackness, boredom, or lack of tension; a letdown after excitement or a period of low motivation.
連休が終わって、気持ちにたるみが出てきた。
After the long holiday, I started to feel a sense of letdown.
仕事にたるみが見られる。
There is a noticeable slackness in the work.
As she got older, sagging began to appear in the skin of her face.
After long stretches of practice, one's motivation starts to slacken.
She does exercises to get rid of the sagging in her face.
I fixed the slack in the rope before climbing.