dead letter

Other Definitions
dead letter (enc)

Noun	1.	dead letter - the state of something that has outlived its relevance non-issue state - the way something is with respect to its main attributes; "the current state of knowledge"; "his state of health"; "in a weak financial state"
	2.	dead letter - mail that can neither be delivered nor returned dead mail letter, missive - a written message addressed to a person or organization; "mailed an indignant letter to the editor"

Word Browser