1. an unsuitable marriage or partnership, especially one between people of different social classes
Usage: formal

Examples

• The wealthy family considered her marriage to the poor artist a misalliance.
• Critics called the merger between the two companies a corporate misalliance.
• His parents viewed the engagement as a misalliance that would damage the family’s reputation.
• The novel explores themes of love versus social expectations through a misalliance plot.
• She defied convention by entering into what society deemed a misalliance.
• The aristocrat’s misalliance with a commoner scandalized high society.