Translation

What a waste! / Don't waste it! / Too good to waste

Meaning

A Japanese expression that conveys a sense of regret concerning waste. It's used when something valuable (time, resources, food, talent) is not utilized to its fullest potential, or when something good is discarded or goes unused. It carries a nuance of respect for the inherent value of things and a desire to avoid waste.

Examples

• まだ食べられるのに捨てるなんて、もったいない！
  It's such a waste to throw it away when it's still edible!
• 彼の才能を使わないのはもったいない。
  It's a waste not to use his talent.