1. in a wasteful manner; without care for saving money or resources

Examples

• He spent his inheritance thriftlessly on luxury cars and expensive vacations.
• The company operated thriftlessly, wasting resources on unnecessary projects.
• She lived thriftlessly in her youth, never thinking about saving for the future.
• The government was criticized for spending taxpayer money thriftlessly.
• They decorated their home thriftlessly, buying expensive items they couldn’t afford.
• He managed his business thriftlessly, leading to financial difficulties.