Definify.com

Webster 1913 Edition

Adj.

Having no issue or progeny; childless.

“The heavens . . . have left me issueless.”

Shak.

Adj.

Having no issue or progeny; wanting children.

issueless ‎(not comparable)

Without issue (children).
Without an issue (point in debate or controversy).
- 2000, Steven E Barkan, Lynne L Snowden, Collective violence
  A final type is the issueless riot, which has no observable motivation or goal.