unbraced

un·brace

U0030500 (ŭn-brās′)tr.v. un·braced, un·brac·ing, un·brac·es 1. To set free by removing bands or braces.2. To release from tension; relax.3. To make slack; weaken.

Thesaurus

Adj.

1.

unbraced - without braces or props unsupported - not held up or borne; "removal of the central post left the roof unsupported"