1. in a way that is superficially attractive but false, insincere, or of poor quality; with flashy or gaudy appeal designed to deceive
Usage: formal; often used to describe deceptive or showy behavior, appearance, or argument

Examples

• The advertisement meretriciously promised results that the product could never deliver.
• She dressed meretriciously in bright colors and cheap jewelry to attract attention.
• The politician's speech was meretriciously crafted to appeal to voters' emotions rather than reason.
• The website meretriciously displayed fake testimonials to boost its credibility.
• He argued meretriciously, using emotional appeals instead of logical evidence.
• The store window was meretriciously decorated with glittering but worthless trinkets.