The word unlatched means not fastened or secured properly. Here are some synonyms for "more unlatched":
1. Looser - not as tightly secured
2. Less secure - not as safe or protected
3. Open - not closed or shut properly
4. Unlocked - not secured with a lock
5. Unfastened - not fixed or attached properly
6. Unsealed - not closed or sealed tightly
7. Unbolted - not secured with bolts or screws
8. Unbarred - not fixed with a bar or barricade
9. Unhinged - not connected or attached to its hinges properly
10. Unhooked - not hung or attached securely to a hook or clamp.