I sounded him some weeks ago, and found him too loose-tongued for our purposes.
To him her face was its confutation, and he knew how loose-tongued is calumny; but still—!
He was not one of the loose-tongued sort, who tell all to everybody.
All good and loyal men, as loose-tongued as Memnon and as fickle as the North Star.
A cigarette-smoking, loose-tongued, kind-to-everybody ...