Lengthiness

n.

1.

The state or quality of being lengthy; prolixity.

Noun	1.	lengthiness - amount or degree or range to which something extends; "the wire has an extension of 50 feet" Synonyms: prolongation, extension
	2.	lengthiness - the consequence of being lengthened in duration Synonyms: protraction, prolongation, continuation

extension, longness, prolongation