(adv) in a disadvantageous way; to someone's disadvantage, Syn. disadvantageously, Ant. well, advantageously, Example:the venture turned out badly for the investors; angry that the case was settled disadvantageously for them
(adv) in a manner affording benefit or advantage, Syn. advantageously, Ant. disadvantageously, badly, Example:she married well; The children were settled advantageously in Seattle