unforgettable /ˌʌnfɚˈgɛtəbəl/ adjective /ˌʌnfɚˈgɛtəbəl/
adjective
Learner's definition of UNFORGETTABLE
[more unforgettable; most unforgettable]
: very special, unusual, beautiful, etc., and therefore difficult or impossible to forget难以忘怀的;令人难忘的 — unforgettably
/ˌʌnfɚˈgɛtəbli/ adverb