inexhaustible

US /ˌɪn.ɪɡˈzɑː.stə.bəl/
UK /ˌɪn.ɪɡˈzɑː.stə.bəl/
1.

지칠줄 모르는

existing in very great amounts that will never be finished:

:
•
There seemed to be an inexhaustible supply of champagne at the wedding.