1. Not tightly fastened, attached, or held: Greg had some loose teeth.

The loosest shingles on the roof had to be replaced.

2. Not pulled or stretched tight or not fitting close to the body: Anton always wore a loose belt.

Emily likes to wear loose skirts.

3. Descriptive of something that is not in a physically normal situation: The loose dog was wandering around the neighborhood.
4. Not held together in a solid or tight mass: The loosest dirt was used for the flower pots.
5. Not stiff or tense: Elvin didn't relax today because he just couldn't get loose.
6. That which is not exact or precise: Roscoe presented a very loose translation of the code.

The book is a dictionary in the loose sense of the meaning of what word definitions should be.

7. Not being careful in speech or talking too freely: Solomon needs to remember that loose talk can spread misinformation.