1. wasted (something valuable) in a reckless or foolish manner
Usage: past tense and past participle of ‘squander’

Examples

• He squandered his inheritance on gambling and luxury cars.
• The company squandered millions on failed marketing campaigns.
• She felt she had squandered her talent by not pursuing music seriously.
• The team squandered a 20-point lead in the final quarter.
• They squandered the opportunity to make peace negotiations.
• His fortune was squandered within just five years.
• The government squandered taxpayer money on unnecessary projects.