adj. 25B6; adjective IRREPRESSIBLE, unquenchable, indestructible, undying, unfailing, unceasing, ceaseless, enduring, everlasting, eternal, persistent.
INEXTINGUISHABLE
Meaning of INEXTINGUISHABLE in English
Concise Oxford thesaurus English vocabulary. Краткий оксфордский словарь английского языка тезаурус. 2012