"Loose" is the Engpsh word for "宽松".
Etymology: The word "loose" originated from the Old Engpsh word "lōs" which meant "not tight".
Examples:
The dress was too loose.
这件衣服太宽松了。
The rope was loose, so I had to tighten it.
绳子太松了，我不得不把它绑紧。
The screw was loose, so I had to fix it.
螺丝松了，我不得不修理它。