あっての

noun-modifying (irregular)

only possible because of; owes everything to; can exist only thanks to

A fixed pattern: XあってのY means Y is only possible or meaningful because X exists. It emphasizes that X is the indispensable foundation for Y. Often used in set phrases like 命あっての物種.

• お客きゃく様さまあっての商しょう売ばいです。

  Our business exists only because of our customers.

• 健けん康こうあっての幸しあわせだ。

  Happiness is only possible with good health.