1. not containing or requiring gas; operating without gasoline or fuel
Usage: commonly used in automotive and energy contexts
2. free from or lacking gas; having no gas present
Usage: technical or scientific usage

Examples

• Electric vehicles are gasless cars that produce zero emissions.
• The new gasless engine technology promises better fuel efficiency.
• She prefers driving a gasless vehicle to reduce her carbon footprint.
• The company developed a gasless heating system for homes.
• Gasless welding is a popular method in metal fabrication.
• The prototype demonstrated that gasless transportation is feasible.