unmarriageable adjective2 •Not marriageable, unsuitable for marriage.You have always had a little way of alluding to her as an unmarriageable girl. — 1880 •That cannot be reconciled, inconsistent.A link was wanting between two craving parts of nature, and he was hurled into being as the bridge over that yawning need, the mediator betwixt two else unmarriageable facts. — 1841 formsmore unmarriageable · most unmarriageable