is·sue·less \-ülə̇s, -u̇l-, -əl-\adjective Etymology: Middle English issules, from issu, issue issue + -les, -lees -less — more at issue I : being without issue: a.: having no offspring < died issueless > b.: producing no result < an issueless effort > c.: not maintaining or marked by any stand that would arouse debate or controversy < an issueless piece of writing >