adjective, loos⋅er, loos⋅est, adverb, verb loosed, loos⋅ing.| 1. | free or released from fastening or attachment: a loose end. |
| 2. | free from anything that binds or restrains; unfettered: loose cats prowling around in alleyways at night. |
| 3. | uncombined, as a chemical element. |
| 4. | not bound together: to wear one's hair loose. |
| 5. | not put up in a package or other container: loose mushrooms. |
| 6. | available for disposal; unused; unappropriated: loose funds. |
| 7. | lacking in reticence or power of restraint: a loose tongue. |
| 8. | lax, as the bowels. |
| 9. | lacking moral restraint or integrity; notorious for his loose character. |
| 10. | sexually promiscuous or immoral; unchaste. |
| 11. | not firm, taut, or rigid: a loose tooth; a loose rein. |
| 12. | relaxed or limber in nature: He runs with a loose, open stride. |
| 13. | not fitting closely or tightly: a loose sweater. |
| 14. | not close or compact in structure or arrangement; having spaces between the parts; open: a loose weave. |
| 15. | having few restraining factors between associated constituents and allowing ample freedom for independent action: a loose federation of city-states. |
| 16. | not cohering: loose sand. |
| 17. | not strict, exact, or precise: a loose interpretation of the law. |
| 18. | Sports.
|
| 19. | in a loose manner; loosely (usually used in combination): loose-flowing. |
| 20. | to let loose; free from bonds or restraint. |
| 21. | to release, as from constraint, obligation, or penalty. |
| 22. | Chiefly Nautical. to set free from fastening or attachment: to loose a boat from its moorings. |
| 23. | to unfasten, undo, or untie, as a bond, fetter, or knot. |
| 24. | to shoot; discharge; let fly: to loose missiles at the invaders. |
| 25. | to make less tight; slacken or relax. |
| 26. | to render less firmly fixed; lessen an attachment; loosen. |
| 27. | to let go a hold. |
| 28. | to hoist anchor; get under way. |
| 29. | to shoot or let fly an arrow, bullet, etc. (often fol. by off): to loose off at a flock of ducks. |
| 30. | Obsolete. to become loose; loosen. |
| 31. | break loose, to free oneself; escape: The convicts broke loose. |
| 32. | cast loose,
|
| 33. | cut loose,
|
| 34. | hang or stay loose, Slang. to remain relaxed and unperturbed. |
| 35. | let loose,
|
| 36. | on the loose,
|
| 37. | turn loose, to release or free, as from confinement: The teacher turned the children loose after the class. |

loose
|
cast loose
Also, cast adrift. Let go, freed, as in After Rob was suspended from boarding school, he was cast loose with nowhere to go, or Selling her home meant she was cast adrift with no financial ties or responsibilities. Originally a nautical term for releasing a vessel, this idiom was being used figuratively by the late 1500s.