Definition of telltale
- telltale Noun One who divulges private information with intent to hurt others.
- telltale Noun Tattletale; squealer.
- telltale Noun Something that serves to reveal something else.
- telltale Noun A length of yarn or ribbon attached to a sail or shroud etc to indicate the direction of the flow of the air relative to the boat.
- telltale Adjective revealing something not intended to be known