[adj] prone to communicate confidential information
[adj] used informally; unable to retain urine
[adj] permitting leaks or leakage; "a leaky roof"; "a leaky defense system"
[adj] permitting liquids to penetrate; "a tarpaulin too leaky to be of much use"
[adj] (of ships and boats) permitting leakage
blabbermouthed, communicative, communicatory, drafty, draughty, drippy, holey, incontinent, leaking, oozing, oozy, porous, seeping, talebearing(a), tattling(a)