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.
Our business exists only because of our customers.
Happiness is only possible with good health.
I think happiness is only possible because of my family.
Our business exists only because of our customers.
Derived from the verb ある (to exist) in its て-form あって, combined with the particle の, forming a fixed expression meaning 'existing because of' or 'only possible due to'.