blabbermouthed vs talebearing

blabbermouthed and talebearing both are adjectives.

Word	Noun	Adjective	Verb	Adverb
blabbermouthed	No	Yes	No	No
talebearing	No	Yes	No	No

As adjectives, blabbermouthed and talebearing are synonyms defined as:

blabbermouthed and talebearing: prone to communicate confidential information

Other synonyms of blabbermouthed include leaky, tattling.

blabbermouthed (adjective)	talebearing (adjective)
prone to communicate confidential information	prone to communicate confidential information
unwisely talking too much