1. in a way that appears reasonable or attractive but is actually false or misleading

Examples

• The politician speciously argued that cutting education funding would improve schools.
• She speciously claimed that the expensive treatment was necessary for her recovery.
• The advertisement speciously suggested that the product could cure any illness.
• He speciously reasoned that working longer hours would automatically lead to better results.
• The company speciously presented the layoffs as an opportunity for remaining employees.
• The theory was speciously attractive but lacked solid evidence.